CN216081955U - Liquid leakage detection sensor and detection system - Google Patents
Liquid leakage detection sensor and detection system Download PDFInfo
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- CN216081955U CN216081955U CN202122224745.4U CN202122224745U CN216081955U CN 216081955 U CN216081955 U CN 216081955U CN 202122224745 U CN202122224745 U CN 202122224745U CN 216081955 U CN216081955 U CN 216081955U
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Abstract
The application provides a weeping detects sensor and detecting system, and the weeping detects the sensor and is used for the weeping of check out test set to detect, and the weeping detects the sensor and includes: the device comprises a base layer, a first detection piece and a second detection piece, wherein the base layer is attached to the surface of the detected device; the first sensing element is at least partially attached to the substrate and extends within the substrate or with the surface of the substrate. The second detection piece is at least partially connected with the base layer and extends in the base layer or along the surface of the base layer, the second detection piece is electrically isolated from the first detection piece, and the first detection piece and the second detection piece are both electrically connected with the controller. The first detection piece and the second detection piece are communicated after contacting with the liquid leaked from the detected equipment. The application provides a weeping detects sensor and detecting system can carry out the weeping to the pipeline and the joint of different specifications and model and detect, and the commonality is good, and application scope is wide.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to the technical field of leakage detection, in particular to a leakage detection sensor and a detection system.
[ background of the utility model ]
The cooling system is widely applied to the fields of petrochemical industry, semiconductor equipment, buildings and data centers, the liquid leakage risk always exists in the using process of the cooling system, and the sealing position of a pipeline and a joint has the influence of various factors, so that the cooling system becomes a component with the largest liquid leakage risk. The common joints comprise a quick-assembly chuck, a quick joint, a cold plate joint, a pipeline forked joint, a flange joint and the like, the types and the specifications are numerous, the number of the common joints is large, the positions of the common joints are scattered, and great difficulty is brought to leakage detection.
In the prior art, leakage detection is performed on a joint part and a pipeline mainly through a detection device matched with the pipeline or the shape of the joint, and the leakage detection device can only be used for joints or pipelines with fixed models and specifications, so that the universality is poor and the use is inconvenient.
[ Utility model ] content
In view of this, the present application provides a liquid leakage detection sensor, which can detect liquid leakage of pipelines and joints of different specifications and models, and has good versatility and wide application range.
The application provides a weeping detects sensor for the weeping of check out test set detects, and it includes: the base layer is attached to the surface of the detected equipment, the first detection piece is electrically connected with the controller, and at least part of the first detection piece is connected with the base layer and extends in the base layer or along the surface of the base layer; the second detection piece is at least partially connected with the base layer and extends in the base layer or along the surface of the base layer, the second detection piece is electrically isolated from the first detection piece, and the second detection piece is electrically connected with the controller; the first detection piece and the second detection piece are communicated after contacting with the liquid leaked from the detected equipment.
In the above scheme, the detection layer can be buckled wantonly and is laminated with the surface of being detected equipment, so can adapt to the being detected equipment of different specifications and models, first detection piece is connected with the detection layer with the second detection piece at least part, and extend along with the detection layer, so after the detection layer laminating on the fastener, in case the coolant is revealed to the fastener, coolant can see through detection layer and first detection piece and the contact of second detection piece, and make the two electric conduction, the flexible weeping detects the sensor and can in time detect the weeping condition.
In one possible design, the first detecting element and the second detecting element are arranged along a surrounding direction of the substrate, and the first detecting element and the second detecting element are arranged along a predetermined geometric shape along a length direction of the substrate.
In one possible design, the first detecting element and the second detecting element are spaced in the thickness direction of the base layer, and projections of the first detecting element and the second detecting element in the thickness direction of the base layer are intersected with each other to form a net structure; alternatively, the first and second electrodes may be,
the base layer surrounds to form a cylinder, and the first detection piece and the second detection piece are parallel to each other and form a spiral structure around the base layer; alternatively, the first and second electrodes may be,
the base layer surrounds to form an electrode cylinder, the electrode units are arranged in a plurality of numbers, the electrode units are arranged along the circumferential direction of the electrode cylinder at intervals, and the extending directions of the first detecting piece and the second detecting piece are parallel to the extending direction of the electrode cylinder.
In one possible design, the liquid leakage detection sensor further includes a third detection piece, one end of the third detection piece is connected with one end of the first detection piece, and the third detection piece and the first detection piece are arranged side by side; alternatively, the first and second electrodes may be,
one end of the third detection piece is communicated with one end of the second detection piece, and the third detection piece and the second detection piece are arranged side by side.
In one possible design, a cross-sectional area of at least one of the first detecting member, the second detecting member, and the third detecting member is 0.7mm2～3.5mm2。
In a possible design, the device to be detected includes a pipeline, the substrate is wound on the pipeline, and the first detecting element and the second detecting element are disposed on a surface of the substrate close to the pipeline.
In one possible design, the detected device includes a pipeline, the substrate surrounds to form a cylindrical structure, and the substrate is sleeved on the pipeline.
In one possible design, the detected device comprises a pipeline, the base layer comprises a main body part, the main body part is attached to the outer surface of the pipeline, one end of the main body part is provided with a first opening part, the other end of the main body part is provided with a second opening part, and the first opening part and the second opening part can be connected with each other; and/or the presence of a gas in the gas,
the first opening portion is connectable to the main body portion.
In one possible design, the detected device includes a flange joint, the flange joint includes a first flange portion and a second flange portion that are connected to each other, the base layer includes a first detecting portion, a connecting portion, and a second detecting portion, the first detecting portion is connected to a surface of the first flange portion that is away from the second flange portion, the second detecting portion is connected to a surface of the second flange portion that is away from the first flange portion, and the connecting portion is disposed on the first flange portion and the second flange portion in a surrounding manner along a joint direction of the first flange portion and the second flange portion;
the first detection piece and the second detection piece are at least partially wound on the connecting part.
In one possible design, the detected device includes a threaded joint, the threaded joint includes a first threaded pipe and a second threaded pipe, the first threaded pipe is in threaded connection with the second threaded pipe, the base layer surrounds to form a detection sleeve, and the detection sleeve includes a first sleeve detection portion sleeved on the first threaded pipe and a second sleeve detection portion sleeved on the second threaded pipe;
the first sleeve detection part is provided with the first detection piece and the second detection piece in a surrounding manner;
the first detection piece and the second detection piece are arranged on the second sleeve detection part in a surrounding mode.
In one possible design, the detected equipment comprises a pagoda joint, the pagoda joint comprises a straight pipe part and a pagoda part, the pagoda part is abutted against the inner wall of the straight pipe part, the base layer surrounds to form a detection sleeve, and the detection sleeve comprises a first sleeve detection part sleeved on the pagoda part and a second sleeve detection part sleeved on the straight pipe part;
the first sleeve detection part is provided with the first detection piece and the second detection piece in a surrounding manner;
the first detection piece and the second detection piece are arranged on the second sleeve detection part in a surrounding mode.
In a possible design, the detected equipment includes chuck joint, chuck joint includes first chuck and the second chuck of mutual butt, the basic unit wind first chuck with the periphery setting of second chuck, the basic unit includes the first portion of bending and the second portion of bending of interconnect, first portion of bending with first chuck is connected, the second portion of bending with the second chuck is connected, first portion of bending with be formed with embedding portion between the second portion of bending, embedding portion corresponds first chuck with the seam setting of second chuck.
In one possible design, the base layer further comprises a color-changing layer that changes color upon contact with the liquid.
In one possible design, the base layer further comprises an adsorption layer, and the adsorption layer adsorbs the liquid after contacting with the liquid.
In a possible design, the base layer further includes a protective layer, and when the leakage detection sensor is attached to the surface of the device to be tested, the protective layer is located on a side of the leakage detection sensor away from the surface of the device to be tested.
The application still provides a detecting system, it includes a plurality of above-mentioned any weeping detection sensor, each weeping detection sensor laminates on the equipment under test, the first detection piece in the weeping detection sensor passes through connecting wire and establishes ties each other or connect in parallel, the second detection piece in the weeping detection sensor passes through connecting wire and establishes ties each other or connect in parallel.
In the scheme, the detection system can simultaneously detect a plurality of detected devices located at different positions, so that the detection efficiency is improved, and the detection cost is reduced.
Additional features and advantages of embodiments of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of embodiments of the present application. The objectives and other advantages of the embodiments of the application will be realized and attained by the structure particularly pointed out in the written description and drawings.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a liquid leakage detection sensor provided in an embodiment of the present application;
fig. 2 is a schematic view of an assembly structure of a flange joint and a leakage detection sensor according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of an assembly structure of a flange joint and a liquid leakage detection sensor from another view angle according to an embodiment of the present disclosure;
fig. 4 is a schematic view of an assembly structure of a threaded joint and a leakage detection sensor according to an embodiment of the present disclosure;
fig. 5 is a schematic view of an assembly structure of a threaded joint and a leakage detection sensor from another view angle according to an embodiment of the present disclosure;
fig. 6 is a schematic view of an assembly structure of a pagoda joint and a leakage detection sensor according to an embodiment of the present disclosure;
FIG. 7 is a schematic view of an assembly structure of a chuck joint and a leakage detection sensor according to an embodiment of the present disclosure;
FIG. 8 is a schematic view of an assembly structure of a chuck joint and a liquid leakage detection sensor from another perspective according to an embodiment of the present disclosure;
FIG. 9 is an enlarged view taken at A in FIG. 8;
fig. 10 is a schematic structural diagram of a leakage detection sensor according to another embodiment of the present application;
fig. 11 is a schematic distribution diagram (one) of a first detecting element and a second detecting element on a base layer in the liquid leakage detecting sensor according to the embodiment of the present disclosure;
fig. 12 is a schematic distribution diagram (ii) of the first detecting element and the second detecting element on the base layer in the liquid leakage detecting sensor according to the embodiment of the present application;
fig. 13 is a schematic structural diagram (one) of a leakage detection sensor according to an embodiment of the present disclosure;
fig. 14 is a schematic structural diagram (two) of a leakage detection sensor according to an embodiment of the present application;
fig. 15 is a schematic structural diagram (iii) of a leakage detection sensor according to an embodiment of the present application.
Reference numerals:
100. a liquid leakage detection sensor;
200. a device to be tested;
1. a base layer;
11. a first detecting member;
12. a second detecting member;
13. a color-changing layer;
14. an adsorption layer;
15. a protective layer;
16. a third detecting member;
2. a flange joint;
21. a first flange portion;
22. a second flange portion;
23. a first detection unit;
24. a connecting portion;
25. a second detection unit;
3. a threaded joint;
31. a first threaded pipe;
32. a second threaded pipe;
33. a first sleeve detection section;
34. a second sleeve detection unit;
4. a pagoda joint;
41. a straight tube portion;
42. a pagoda segment;
5. a chuck adapter;
51. a first chuck;
52. a second chuck;
53. a first bending portion;
54. a second bending portion;
55. an insertion section;
56. a wrapping member;
561. a wrapping section;
2000-pipeline;
110-length direction;
120-width direction;
130-a body portion;
140-a first opening;
150-second opening.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
Next, a specific example of the structure of the leakage detection sensor according to the embodiment of the present application will be described.
The device under test 200 (mainly including a cooling system) has a cooling medium flowing therein, and the cooling medium may be a substance having a high specific heat capacity such as water, and the cooling medium is continuously circulated in the device under test. The first detection piece and the second detection piece are electrically connected with the controller, and the controller can be arranged on the detected equipment, so that when the detected equipment leaks, the first detection piece and the second detection piece sense the leaking liquid and can transmit signals to the controller in time so as to perform next operation.
The common detected equipment 200 comprises a chuck joint 5, a quick-assembling chuck, a threaded joint 3, a flange joint 2, a pagoda joint 4, a one-way valve, a filter, a ball valve, a butterfly valve, a pipeline and the like, the used quantity of the detected equipment is large, the positions of the detected equipment are scattered, the detected equipment has various sizes in the same shape, great difficulty is brought to joint leakage detection, and on the other hand, the detected equipment becomes a component with the maximum leakage risk due to the fact that the liquid cooling data center equipment is long in service life and the joint sealing has the influence of various factors.
In the prior art, the outer sleeve type liquid leakage detection device with a fixed structure is usually sleeved at the position of the detected equipment 200 for liquid leakage detection, and because the detected equipment 200 is different in shape and specification, the outer sleeve type liquid leakage detection device with the fixed structure is poor in universality and low in detection accuracy.
In view of this, the present application provides a liquid leakage detection sensor 100, which includes a base layer 1, a first detection element 11 and a second detection element 12, wherein the base layer 1 can be arbitrarily bent and attached to the surface of the device under test 200. The first detecting member 11 is at least partially connected to the base layer 1 and extends inside the base layer 1 or along the surface of the base layer 1. The second detecting element 12 is at least partially connected with the substrate 1 and extends inside the substrate 1 or along the surface of the substrate 1, and the second detecting element 12 is electrically isolated from the first detecting element 11. When the device under test 200 leaks the cooling medium, the cooling medium comes into contact with the first and second detection pieces 11 and 12 and makes them electrically conductive.
Referring to fig. 1, the base layer 1 may be made of a flexible material, the base layer 1 can be bent freely and attached to the surface of the device 200 to be tested, therefore, the device 200 can be suitable for different specifications and models of detected devices, the first detecting element 11 and the second detecting element 12 are at least partially connected with the base layer 1, and extends along the base layer 1, the first detecting member 11 and the second detecting member 12 may be disposed on the surface of the base layer 1 or embedded in the base layer 1, the base layer 1 may be made of a water-permeable material (e.g., sponge, etc.), or may be provided with porous and water-permeable holes thereon, such that, when the cooling medium leaks from the joint of the device under test 200, the cooling medium permeates through the base layer 1 attached to the surface of the device under test 200, and contacts and conducts the first detection element 11 and the second detection element 12, and at this time, the leakage detection sensor 100 can detect the leakage in time.
In one embodiment, the first detecting element 11 and the second detecting element 12 are arranged along the surrounding direction of the substrate 1, and the first detecting element 11 and the second detecting element 12 are arranged along a predetermined geometric shape along the length direction of the substrate 1.
It should be noted that the first detecting element 11 and the second detecting element 12 may be two conducting wires disposed on the base layer 1, the first detecting element 11 and the second detecting element 12 extend along the extending direction of the base layer 1 along the base layer 1, and the first detecting element 11 and the second detecting element 12 may be bent along an S shape, a Z shape or a zigzag shape in the base layer 1, so as to extend the range of the first detecting element 11 and the second detecting element 12 covering the base layer 1, and further improve the detection accuracy of the liquid leakage detecting sensor 100.
The cross-sectional shapes of the first detecting piece 11 and the second detecting piece 12 can be circular, oval, semicircular, trapezoidal, square and the like, and when the cross-sectional shapes of the first detecting piece 11 and the second detecting piece 12 are circular, the diameters of the first detecting piece 11 and the second detecting piece 12 can be limited within 1mm, so that the flexibility of the first detecting piece 11 and the second detecting piece 12 when the first detecting piece 11 and the second detecting piece 12 are bent along with the base layer 1 can be ensured.
In one embodiment, the device under test 200 is a flange joint 2, the flange joint 2 includes a first flange portion 21 and a second flange portion 22 connected to each other, the substrate 1 includes a first detection portion 23, a connection portion 24 and a second detection portion 25, the first detection portion 23 is connected to a surface of the first flange portion 21 away from the second flange portion 22, the second detection portion 25 is connected to a surface of the second flange portion 22 away from the first flange portion 21, and the connection portion 24 is disposed on the first flange portion 21 and the second flange portion 22 in a surrounding manner along a joint direction of the first flange portion 21 and the second flange portion 22;
the first detecting member 11 and the second detecting member 12 are at least partially wound around the connecting portion 24.
Referring to fig. 2 and 3, the substrate 1 includes a first detecting portion 23, a connecting portion 24 and a second detecting portion 25, the first detecting portion 23 and the second detecting portion 25 are respectively connected to the first flange portion 21 and the second flange portion 22, the connecting portion 24 is disposed on the first flange portion 21 and the second flange portion 22 along a joint direction of the first flange portion 21 and the second flange portion 22, and the first detecting member 11 and the second detecting member 12 are at least partially wound around the connecting portion 24, the first detecting member 11 and the second detecting member 12 may be arranged in a group, a plurality of sets of the first detecting member 11 and the second detecting member 12 may be provided on the connecting portion 24 to expand the detection range, the joint in the flange joint 2 where the risk of leakage is greatest is completely covered by the joint 24 by the above-described arrangement, and the first detecting member 11 and the second detecting member 12 are disposed in the connecting portion 24, so that the leakage detecting sensor 100 can sense leakage at the flange joint 2 in time.
In one embodiment, the device under test 200 is a threaded joint 3, the threaded joint 3 includes a first threaded pipe 31 and a second threaded pipe 32, the first threaded pipe 31 is in threaded connection with the second threaded pipe 32, the substrate 1 surrounds to form a detection sleeve, and the detection sleeve includes a first sleeve detection part 33 sleeved on the first threaded pipe 31 and a second sleeve detection part 34 sleeved on the second threaded pipe 32;
the first sleeve detection part 33 is provided with a first detection piece 11 and a second detection piece 12 in a surrounding manner;
the first detector 11 and the second detector 12 are provided around the second ferrule detection portion 34.
Referring to fig. 4 and 5, since the leakage risk position of the threaded joint 3 is mainly at the joint of the first threaded pipe 31 and the second threaded pipe 32, the first casing detecting part 33 is externally sleeved on the first threaded pipe 31, the second casing detecting part 34 is externally sleeved on the second threaded pipe 32, the first casing detecting part 33 and the second casing detecting part 34 can be integrally arranged or separately arranged, the first and second detecting members 11 and 12 are provided on the first and second casing detecting portions 33 and 34, respectively, the first and second detecting members 11 and 12 may be provided in a group, a plurality of sets of the first detecting element 11 and the second detecting element 12 may be provided on the first casing detecting portion 33 and the second casing detecting portion 34 to expand the detection range, thus, leakage at any position of the threaded joint 3 can be sensed by the leakage detection sensor 100 surrounding the threaded joint, and the detection reliability is improved.
In one embodiment, the device under test 200 is a pagoda joint 4, the pagoda joint 4 comprises a straight pipe portion 41 and a pagoda portion 42, the pagoda portion 42 abuts against the inner wall of the straight pipe portion 41, the base layer 1 surrounds and forms a detection sleeve, and the detection sleeve comprises a first sleeve detection portion 33 sleeved on the pagoda portion 42 and a second sleeve detection portion 34 sleeved on the straight pipe portion 41;
the first sleeve detection part 33 is provided with a first detection piece 11 and a second detection piece 12 in a surrounding manner;
the first detector 11 and the second detector 12 are provided around the second ferrule detection portion 34.
Referring to fig. 6, similar to the threaded joint 3, in the pagoda joint 4 of the present embodiment, the leakage occurring at any position of the pagoda joint 4 is sensed by the leakage detecting sensor 100 surrounding the position, so as to improve the detection reliability.
In one embodiment, the device under test 200 is a chuck joint 5, the chuck joint 5 includes a first chuck 51 and a second chuck 52 abutted against each other, the base layer 1 is disposed around the circumferential surface of the first chuck 51 and the second chuck 52, the base layer 1 includes a first bending portion 53 and a second bending portion 54 connected to each other, the first bending portion 53 is connected to the first chuck 51, the second bending portion 54 is connected to the second chuck 52, an embedding portion 55 is formed between the first bending portion 53 and the second bending portion 54, and the embedding portion 55 is disposed corresponding to the joint between the first chuck 51 and the second chuck 52.
Referring to fig. 7, 8 and 9, the base layer 1 includes a first bending portion 53, a second bending portion 54 and an embedding portion 55, and when the base layer 1 is disposed around the circumferential surfaces of the first chuck 51 and the second chuck 52, the embedding portion 55 is disposed corresponding to the joint between the first chuck 51 and the second chuck 52, so that when liquid leakage occurs at the joint between the first chuck 51 and the second chuck 52, which are abutted against each other, the cooling medium contacts the embedding portion 55 of the base layer 1 and contacts the first detecting member 11 and the second detecting member 12 in the base layer 1 through the embedding portion 55, so that the liquid leakage detecting sensor 100 can sense the liquid leakage at the chuck joint 5 in time. First detection piece 11 and second detection piece 12 can all be set up in first bending portion 53, second bending portion 54 and embedding portion 55, so, no matter the arbitrary position weeping of chuck joint 5 can all be sensed by weeping detection sensor 100 to improve the detection range and the detection precision of weeping detection sensor 100.
In one embodiment, the liquid leakage detecting sensor 100 further includes a wrapping member 56, the wrapping member 56 includes a plurality of wrapping portions 561, the plurality of wrapping portions 561 are disposed on the chuck sub 5 at intervals along the circumferential direction of the chuck sub 5, and the wrapping portions 561 are used for fixing the substrate 1 on the chuck sub 5.
Referring to fig. 7 and 8, in order to further improve the stability of the liquid leakage detection sensor 100 on the chuck connector 5, in this embodiment, a wrapping member 56 is further provided, the wrapping member 56 includes a plurality of wrapping portions 561, the wrapping portions 561 can be flexibly disposed at any positions on the circumference of the chuck connector 5, the wrapping portions 561 can be fixed on the chuck connector 5 by gluing, binding, or bolting, and the like, the substrate 1 can be fixed on the chuck connector 5 by using the wrapping portions 561, so as to improve the stability of the liquid leakage detection sensor 100, and the wrapping portions 561 are located at the periphery of the substrate 1, so as to protect the substrate 1, and the first detection member 11 and the second detection member 12 disposed on the substrate 1.
In one embodiment, the base layer 1 further includes a discoloration layer 13, and the discoloration layer 13 discolors upon contact with a cooling medium.
Referring to fig. 10, since the base layer 1 covering the device under test 200 is further provided with the color changing layer 13, the portion of the color changing layer 13 contacting the cooling medium changes color after contacting the leaked cooling medium, and thus the leakage detection sensor 100 can not only detect the leakage signal, but also indicate the leakage position by using the color change. It should be noted that the material of the color changing layer 13 may be any material containing color changing ink, color changing paint or other material changing color when meeting water, and the color changing property can be divided into restorability and non-restorability according to the repeated use requirement of the leakage detection sensor 100. The structure of the color-changing layer 13 can be a layer structure separated from the base layer 1, or a structure combined with the base layer 1, for example, the color-changing material is mixed with the material of the base layer 1 in a certain proportion, so that the base layer 1 has the function of the color-changing layer 13, thus, the thickness of the leakage detection sensor 100 is reduced, and the integrity of the leakage detection sensor 100 is improved.
In one embodiment, the base layer 1 further includes an adsorption layer 14, and the adsorption layer 14 adsorbs the cooling medium after contacting the cooling medium.
Referring to fig. 10, because the base layer 1 covering the device under test 200 is further provided with the adsorption layer 14, the adsorption layer 14 may be made of a material such as sponge, which is easy to adsorb the cooling medium, and the adsorption layer 14 may adsorb and store the leaked cooling medium by using a physical or chemical adsorption effect, the leaked cooling medium can be timely adsorbed when contacting the cooling medium, thereby preventing the cooling medium from leaking outside and affecting other devices or apparatuses. It should be noted that the structure of the absorption layer 14 may be a layer structure separated from the base layer 1, or a structure combined with the base layer 1, for example, the absorption material is mixed with the material of the base layer 1 in a certain proportion, so that the base layer 1 also has the function of the absorption layer 14, thus, the thickness of the leakage detection sensor 100 is reduced, and the integrity of the leakage detection sensor 100 is improved.
In one embodiment, the base layer 1 further includes a protective layer 15, and when the leakage detection sensor 100 is attached to the surface of the device under test 200, the protective layer 15 is located on a side of the leakage detection sensor 100 away from the surface of the device under test 200.
Referring to fig. 10, the protective layer 15 is provided to protect the structure of the sensor 100, so as to improve the service life of the sensor 100. The protective layer 15 may have a certain isolation capability, so that when external moisture invades the leakage detection sensor 100, the protective layer 15 may have a certain isolation effect, thereby reducing the false alarm probability of the leakage detection sensor 100.
It should be noted that the relative position relationship and stacking arrangement among the base layer 1, the adsorption layer 14, the color-changing layer 13 and the protection layer 15 can be arbitrarily arranged and combined according to actual needs, and are not limited herein. As shown in fig. 10, the arrangement of the layers in the leakage detection sensor 100 is shown in one embodiment.
The base layer 1, the adsorption layer 14, the color changing layer 13, and the protective layer 15 are not limited to separate layer structures, but may be a single layer structure formed by mixing materials of the above layers in a certain ratio according to actual needs, and the first detecting element 11 and the second detecting element 12 may be provided in the single layer structure.
In one embodiment, as shown in fig. 11 and 12, the first detecting member 11 and the second detecting member 12 are arranged along the surrounding direction of the substrate 1, and the first detecting member 11 and the second detecting member 12 are arranged along a predetermined geometric shape in the length direction 110 of the substrate 1; the predetermined geometric shape may be any one of a "Z" shape, an "N" shape, an "S" shape, or a "N" shape, and referring to fig. 11, 12, and 13, a length direction 110 of the base layer 1 is a direction in which the base layer 1 extends along an axis of the pipeline 2000, the aforementioned surrounding direction is a surrounding direction when the base layer 1 surrounds the pipeline 2000, after the base layer 1 is flattened, the base layer 1 is substantially rectangular, at this time, the first detecting elements 11 and the second detecting elements 12 are arranged along a width direction 120 of the base layer 1, that is, the width direction 120 of the base layer 1 is a direction perpendicular to the length direction 110 after the base layer 1 attached to the pipeline 2000 is flattened, and a thickness direction of the base layer 1 is a direction in which one surface of the base layer 1 attached to the pipeline 2000 points to a surface of the base layer 1 away from the pipeline 2000.
Because the first detecting element 11 and the second detecting element 12 need to be apart from each other by a certain distance to ensure insulation, and the thickness of the base layer 1 cannot be too thick (the softness of the base layer 1 is ensured), the first detecting element 11 and the second detecting element 12 are arranged along the width direction 120 of the base layer 1, so that the first detecting element 11 and the second detecting element 12 can be ensured to be spaced from each other in the base layer 1 on the premise of reducing the thickness of the base layer 1 as much as possible. And the first detection element 11 and the second detection element 12 are continuously arranged along the preset geometric shape in the length direction 110 of the base layer 1, so that the range of the base layer 1 can be covered as much as possible, the detection sensitivity is improved, and the detection omission is avoided.
In one embodiment, the leakage detection sensor 100 further includes a third detection element 16, please refer to fig. 14, one end of the third detection element 16 is connected to one end of the first detection element 11, and the third detection element 16 is arranged side by side with the first detection element 11; alternatively, the first and second electrodes may be,
one end of the third detecting member 16 is communicated with one end of the second detecting member 12, and the third detecting member 16 is arranged side by side with the second detecting member 12.
After the added third detecting element 16 is connected to the first detecting element 11 or the second detecting element 12, when the leaked cooling medium is conducted between the first detecting element 11 and the second detecting element 12, the cooling medium at the leaking position can be regarded as an equivalent resistance with a resistance value RX, the third detecting element 16 can be regarded as a resistance with a resistance value R, the position where the cooling medium is connected to the first detecting element 11 is set as a point a, and the position where the cooling medium is connected to the second detecting element 12 is set as a point b, the first detecting element 11 is divided into two parts with the point a as a boundary, the resistances of the two parts are R and R respectively, the second detecting element 12 is divided into two parts with the point b as a boundary, the resistance values of the two parts are R and R respectively, and the specific positions where the first detecting element 11 and the second detecting element 12 are conducted can be obtained by measuring the electric signals on the first detecting element 11, the second detecting element 12 and the third detecting element 16, and further, a specific leakage position is calculated, thereby improving the detection accuracy of the leakage detection sensor 100.
In one embodiment, at least one of the first detecting member 11, the second detecting member 12 and the third detecting member 16 has a cross-sectional area of 0.7mm2～3.5mm2。
The cross-sectional shapes of the first detecting element 11, the second detecting element 12 and the third detecting element 16 may be circular, elliptical, semicircular, trapezoidal, square, etc., and the cross-sectional areas of the first detecting element 11 and the third detecting element 16 are 0.7mm2～3.5mm2In the meantime. Taking the first detecting element 11, the second detecting element 12 and the third detecting element 16 with circular cross-sectional shapes as an example, the diameter ranges of the first detecting element 11, the second detecting element 12 and the third detecting element 16 are 0.5 mm-1 mm, so that when the base layer 1 is bent to be attached to surfaces of different shapes, the electrode wire can be bent along with the base layer 1 to ensure the attaching degree between the base layer 1 and the pipeline 2000.
The cross-sectional areas of the first detection piece 11, the second detection piece 12 and the third detection piece 16 are limited, and the first detection piece 11, the second detection piece 12 and the third detection piece 16 are easy to bend when stressed, so that the softness of the body of the leakage detection sensor 100 is guaranteed, and the application range of the leakage detection sensor 100 is expanded.
In one embodiment, at least one of the first detecting element 11, the second detecting element 12, and the third detecting element 16 is made of at least one of copper, aluminum, iron, nickel, tin, and chromium, and specifically, the first detecting element 11, the second detecting element 12, and the third detecting element 16 may be fiber wires plated with metal films, which have good electrical conductivity and high strength.
The use of the above-mentioned material can ensure the conductivity of the first detecting member 11, the second detecting member 12 and the third detecting member 16 well.
Some examples are given below.
The first embodiment is as follows:
because the cross-sectional shapes of the pipes in the cooling system are different (for example, circular, oval, square or a composite shape thereof), the pipe diameters of the pipes are different, the lengths of the pipes are different, and the pipes are connected through various joints, and leakage risk points exist at the joints and the pipes themselves. In order to match different shapes and sizes of the pipes 2000 and the joints of the cooling system, in the present embodiment, the base layer 1 is designed to be a surrounding cylindrical structure, so that the base layer 1 is sleeved on the pipes 2000 or the joints of the cooling system.
Referring to fig. 13, the tubular structure surrounded by the base layer 1 can be adjusted according to the length and size of the pipe 2000 or the joint, and when the cooling system is installed, the tubular structure surrounded by the base layer 1 can be assembled along the extending direction of the pipe 2000 or the joint in the cooling system.
Taking the leakage detection sensor 100 installed on the pipeline 2000 as an example, the inner diameter of the cylindrical structure surrounded by the base layer 1 may be slightly larger than the outer diameter of the pipeline 2000, and after the leakage detection sensor 100 is sleeved in a proper position, the leakage detection sensor may be fixed outside the pipeline in a form of heat shrinkage, bonding, ribbon or binding. Specifically, for example, in a thermal shrinkage fixing manner, a layer of heat-shrinkable tube is further disposed outside the leakage detection sensor 100, after the leakage detection sensor 100 is sleeved in the proper position of the pipeline 2000, the heat-shrinkable tube is heated, and after the heat-shrinkable tube is heated and shrunk, the leakage detection sensor 100 is extruded and pressed against the outer surface of the pipeline 2000.
The sensor 100 for detecting leakage provided by the embodiment is cylindrical, and is fixed at any position of the cooling system through a conventional fixing structure, so that the sensor is convenient to use and low in cost.
Example two:
in order to further increase the application range of the leakage detection sensor 100 and improve the convenience and the recycling rate of the leakage detection sensor 100 in use.
The embodiment provides a liquid leakage detection sensor 100, wherein a base layer 1 comprises a main body part 130, the main body part 130 is attached to the outer surface of a cooling system, one end of the main body part 130 is provided with a first opening part 140, the other end of the main body part 130 is provided with a second opening part 150, and the first opening part 140 and the second opening part 150 can be connected with each other; and/or the first opening 140 may be connected to the body 130.
Referring to fig. 14, the main body 130 of the base layer 1 is attached to the outer surface of the cooling system (the outer surface of the cooling system may be the outer wall surface of the pipe 2000 or the joint position of the joint portion), and the first opening portion 140 and the second opening portion 150 may be a zipper structure or a snap structure that is engaged with each other, according to the shape of the outer surface of the cooling system, so that, after the main body portion 130 of the base layer 1 is attached to the outer surface of the cooling system, the detachable connection can be achieved by the connection and cooperation of the first opening portion 140 and the second opening portion 150, not only improving the stability of the leakage detecting sensor 100 when it is fixed to the cooling system, and the leakage detection sensor 100 can be conveniently detached through the detachable structure after use, so that the leakage detection sensor 100 can be repeatedly used.
Example three:
in order to meet the requirements of flexible installation and adapting to the pipelines 2000 with different lengths, the present embodiment provides a liquid leakage detecting sensor 100, which has a shape and structure similar to a wound tape, please refer to fig. 15, in which a base layer 1 is wound on the pipeline 2000, and a first detecting element 11 and a second detecting element 12 are disposed on one surface of the base layer 1 close to the pipeline 2000. In this embodiment, the base layer 1 may be a strip structure, the first detecting element 11 and the second detecting element 12 are disposed on the base layer 1 in parallel, the extending direction of the first detecting element 11 and the second detecting element 12 is the same as the length direction 110 of the base layer 1, the first detecting element 11 and the second detecting element 12 are both disposed on one surface of the base layer 1 and at least partially protrude from the base layer 1, when the substrate 1 is installed and used, the surface of the base layer 1 on which the first detecting element 11 and the second detecting element 12 are disposed faces the pipeline 2000, so that the detecting speed can be increased when the pipeline 2000 leaks.
The length direction 110 of the base layer 1 can be inclined at a certain angle relative to the axial direction of the pipeline 2000 and wrap the pipeline 2000 in the winding process, and the adjacent two base layers 1 can be overlapped at the same time, so that liquid is prevented from leaking from the edge of the base layer 1, and the sealing performance is improved.
In the above solution, the base layer 1 may be wound around the pipe 2000 or the joint portion, the base layer 1 may be adapted according to the shape of the pipe 2000 or the joint portion, and the base layer 1 wound thereon may be attached to the pipe 2000 regardless of the cross-sectional shape of the pipe 2000 or the shape and structure of the joint portion, so that the application range and the convenience of the liquid leakage detection sensor 100 are improved.
In one embodiment, the substrate 1 surrounds to form a cylinder, and the first detecting member 11 and the second detecting member 12 are parallel to each other and form a spiral structure around the substrate 1.
In one embodiment, the base layer 1 surrounds to form an electrode cylinder, the first detecting element 11 and the second detecting element 12 are arranged in a group to form electrode units, the electrode units are arranged in a plurality, the electrode units are arranged at intervals along the circumferential direction of the electrode cylinder, and the extending directions of the first detecting element 11 and the second detecting element 12 are parallel to the extending direction of the electrode cylinder.
The first detecting element 11 and the second detecting element 12 may be woven in a plain weave, a twill weave, or other forms of woven mesh structures in the base layer 1, or may be spaced apart in the thickness direction of the base layer 1, and projections of the first detecting element 11 and the second detecting element 12 in the thickness direction of the base layer 1 intersect with each other to form a mesh structure, or the first detecting element 11 and the second detecting element 12 are parallel to each other and form a spiral structure around the pipeline 2000, that is, the first detecting element 11 and the second detecting element 12 extend spirally in the side wall of the pipeline 2000 with the axis of the pipeline 2000 as the center. The detection range of the leakage detection sensor 100 can be increased by the above arrangement, and the leakage detection sensor 100 can detect the leakage position no matter any part of the pipeline 2000 is damaged.
The application also provides a detection system, and detection system includes a plurality of above-mentioned weeping detection sensors 100, and each weeping detection sensor 100 laminates on the equipment 200 of being examined of difference, and the equipment 200 of being examined includes the joint department of pipeline 2000 and various pipelines, and first detection piece 11 in the weeping detection sensor 100 is established ties each other or is parallelly connected through the connecting wire, and second detection piece 12 in the weeping detection sensor 100 is established ties each other or is parallelly connected through the connecting wire.
In practical use, in some large-scale apparatuses, the apparatuses to be detected 200 are far apart from each other, and based on cost considerations, the leakage detection sensors 100 are usually disposed on the apparatuses to be detected 200, so as to improve detection efficiency, and enable the detection system to simultaneously detect a plurality of apparatuses to be detected 200, in this embodiment, the first detection elements 11 in the leakage detection sensors 100 are connected in series or in parallel by using connection lines, and for the same reason, the second detection elements 12 in the leakage detection sensors 100 are connected in series or in parallel by using connection lines, so that the leakage detection sensors 100 are connected with each other to form a complete detection system, and when a leakage is detected by a leakage detection sensor 100 at any position, the detection system can sense the leakage. In order to improve the intelligence degree of the detection system, the detection system may further include an alarm device, and the alarm device is in communication connection with each of the leakage detection sensors 100, specifically, may be connected in any wireless or wired communication manner such as bluetooth, a communication line, and the like, so that signals can be freely transmitted between the alarm device and the leakage detection sensor 100 which are connected to each other. When liquid leakage is detected, the alarm device can give an alarm to remind detection personnel to overhaul in time.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (16)
1. A liquid leakage detection sensor for detecting liquid leakage of a device under test, comprising:
the base layer is attached to the surface of the detected equipment;
a first sensing element at least partially coupled to the substrate and extending within the substrate or with a surface of the substrate, the first sensing element being electrically coupled to the controller;
a second detection element, at least a portion of which is connected to the base layer and extends within the base layer or along the surface of the base layer, the second detection element being electrically isolated from the first detection element, the second detection element being electrically connected to the controller;
the first detection piece and the second detection piece are communicated after contacting with the liquid leaked from the detected equipment.
2. The leak detection sensor according to claim 1, wherein the first detection member and the second detection member are arranged along a direction of the base layer, and the first detection member and the second detection member are arranged along a predetermined geometric shape in a length direction of the base layer.
3. The leak detection sensor according to claim 1, wherein the first detection member and the second detection member are spaced apart in a thickness direction of the base layer, and projections of the first detection member and the second detection member in the thickness direction of the base layer intersect with each other to form a mesh structure; alternatively, the first and second electrodes may be,
the base layer surrounds to form a cylinder, and the first detection piece and the second detection piece are parallel to each other and form a spiral structure around the base layer; alternatively, the first and second electrodes may be,
the base layer surrounds to form an electrode cylinder, the first detection piece and the second detection piece are arranged into electrode units in a group, the electrode units are arranged in a plurality, the electrode units are arranged at intervals along the circumferential direction of the electrode cylinder, and the extending directions of the first detection piece and the second detection piece are parallel to the extending direction of the electrode cylinder.
4. The leak detection sensor according to any one of claims 1 to 3, further comprising a third detection member, one end of which is connected to one end of the first detection member, the third detection member being arranged side by side with the first detection member; alternatively, the first and second electrodes may be,
one end of the third detection piece is communicated with one end of the second detection piece, and the third detection piece and the second detection piece are arranged side by side.
5. The leak detection sensor according to claim 4, wherein at least one of the first detection member, the second detection member, and the third detection member has a cross-sectional area of 0.7mm2～3.5mm2。
6. The leak detection sensor according to claim 1, wherein the device to be detected includes a pipe, the substrate is wound around the pipe, and the first detection member and the second detection member are disposed on a surface of the substrate adjacent to the pipe.
7. The leak detection sensor according to claim 1, wherein the device to be detected comprises a pipeline, the substrate surrounds a cylindrical structure, and the substrate is sleeved on the pipeline.
8. The leak detection sensor according to claim 1, wherein the device under test comprises a pipeline, the base layer comprises a main body portion, the main body portion is attached to an outer surface of the pipeline, one end of the main body portion is provided with a first opening portion, the other end of the main body portion is provided with a second opening portion, and the first opening portion and the second opening portion are capable of being connected to each other; and/or the presence of a gas in the gas,
the first opening portion is connectable to the main body portion.
9. The leakage detection sensor according to claim 1, wherein the device under test includes a flange joint, the flange joint includes a first flange portion and a second flange portion connected to each other, the base layer includes a first detection portion, a connection portion, and a second detection portion, the first detection portion is connected to a surface of the first flange portion away from the second flange portion, the second detection portion is connected to a surface of the second flange portion away from the first flange portion, and the connection portion is disposed around the first flange portion and the second flange portion along a joint direction of the first flange portion and the second flange portion;
the first detection piece and the second detection piece are at least partially wound on the connecting part.
10. The leak detection sensor according to claim 1, wherein the device under test includes a threaded joint, the threaded joint includes a first threaded pipe and a second threaded pipe, the first threaded pipe is in threaded connection with the second threaded pipe, the base layer surrounds to form a detection sleeve, the detection sleeve includes a first sleeve detection portion sleeved on the first threaded pipe and a second sleeve detection portion sleeved on the second threaded pipe;
the first sleeve detection part is provided with the first detection piece and the second detection piece in a surrounding manner;
the first detection piece and the second detection piece are arranged on the second sleeve detection part in a surrounding mode.
11. The leakage detection sensor according to claim 1, wherein the device under test comprises a pagoda joint, the pagoda joint comprises a straight pipe portion and a pagoda portion, the pagoda portion abuts against an inner wall of the straight pipe portion, the base layer surrounds to form a detection sleeve, and the detection sleeve comprises a first sleeve detection portion sleeved on the pagoda portion and a second sleeve detection portion sleeved on the straight pipe portion;
the first sleeve detection part is provided with the first detection piece and the second detection piece in a surrounding manner;
the first detection piece and the second detection piece are arranged on the second sleeve detection part in a surrounding mode.
12. The leakage detection sensor of claim 1, wherein the device under test comprises a chuck joint, the chuck joint comprises a first chuck and a second chuck which are abutted against each other, the base layer is arranged around the circumferential surface of the first chuck and the second chuck, the base layer comprises a first bending part and a second bending part which are connected with each other, the first bending part is connected with the first chuck, the second bending part is connected with the second chuck, an embedding part is formed between the first bending part and the second bending part, and the embedding part corresponds to the seam arrangement of the first chuck and the second chuck.
13. The leak detection sensor according to claim 1, wherein the base layer further includes a color changing layer that changes color upon contact with the liquid.
14. The leak detection sensor according to any one of claims 1 or 13, wherein the base layer further comprises an adsorption layer that adsorbs the liquid after contacting the liquid.
15. The leak detection sensor according to claim 14, wherein the base layer further includes a protective layer, and when the leak detection sensor is attached to the surface of the device under test, the protective layer is located on a side of the leak detection sensor away from the surface of the device under test.
16. A detection system, comprising a plurality of the leak detection sensors according to any one of claims 1 to 15, wherein each of the leak detection sensors is attached to a device to be detected, first detection pieces in the leak detection sensors are connected in series or in parallel with each other through a connection line, and second detection pieces in the leak detection sensors are connected in series or in parallel with each other through a connection line.
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