On-line monitoring device for running state of electric equipment

Abstract

The invention relates to an electric equipment running state online monitoring device, and discloses a monitoring device which integrates multiple sensing modules, monitors parameters such as temperature, voltage, current, heat distribution and running sound of electric equipment in real time and is convenient to install. The device is characterized by comprising a mounting rack, a supporting cylinder, a temperature sensing sleeve, a thermal imaging sensing module, a data transmission module, a voiceprint acquisition module, an electrical parameter detection module, an elastic piece and a patch type temperature sensor, and is characterized in that the mounting rack is arranged on the supporting cylinder, and the temperature sensing sleeve is movably arranged in the supporting cylinder through the elastic piece; one end of the elastic piece is connected with the inner wall of the supporting cylinder, the other end of the elastic piece is connected with the outer wall of the temperature sensing sleeve, the electrical parameter detection module is arranged on the inner wall or the outer wall of the supporting cylinder, the patch type temperature sensor is arranged on the inner wall of the temperature sensing sleeve, the thermal imaging sensing module is arranged on the inner wall of the mounting frame, and the voiceprint collection module is arranged on the inner wall of the mounting frame. And the data transmission module is arranged on the mounting rack or the supporting cylinder.

Description

Technical Field

[0001] An on-line monitoring device for the operating state of an electrical device of the present invention relates to a device for integrally monitoring the operating state of an electrical device, belonging to the technical field of electrical equipment. In particular, it relates to a monitoring device that integrates multiple sensing modules, can real-time monitor parameters such as the temperature, voltage, current, heat distribution, and operating sound of an electrical device, and is easy to install. Background Art

[0002] Electrical devices (such as high and low voltage switch cabinets, ring main units, transformers, control cabinets, distribution cabinets, large motors, electric motors, compressors, etc.) operate at high loads for a long time, and are prone to failures or even accidents due to reasons such as excessive temperature rise, insulation aging, and current overload. Timely grasping of the operating state of the device (such as temperature, voltage, current, sound, etc.) can detect and handle potential device faults in advance, reduce the number of unplanned outages, and is the key means to ensure the safe and stable operation of the device, reduce maintenance costs, and improve the intelligent operation and maintenance level. At present, there are mainly two methods for monitoring the operating state of electrical devices: manual inspection and sensor monitoring. In manual inspection, maintenance personnel regularly use temperature measuring instruments, clamp ammeters, infrared temperature guns, etc. to regularly measure the operating parameters of the device. It depends on the experience of the maintenance personnel, has a low monitoring frequency, and is prone to missing abnormal conditions. Sensor monitoring installs single or multiple sensors outside or inside the device for monitoring. The integration degree is low. When installing each sensor, the device needs to be powered off, the shell needs to be disassembled, drilled, and multiple wiring constructions are required. The more sensors there are, the more cumbersome and complex the installation and construction operations are, which is difficult to meet the on-site requirements of rapid deployment. Moreover, in the case of a sudden increase in seasonal load, it is difficult to temporarily increase the monitoring points. Summary of the Invention

[0003] In order to improve the above situation, an on-line monitoring device for the operating state of an electrical device of the present invention provides a monitoring device that integrates multiple sensing modules, can real-time monitor parameters such as the temperature, voltage, current, heat distribution, and operating sound of an electrical device, and is easy to install.

[0004] An on-line monitoring device for the operating state of an electrical device of the present invention is implemented as follows: The on-line monitoring device for the operating state of an electrical device of the present invention includes a mounting rack, a support cylinder, a temperature sensing sleeve, a thermal imaging sensing module, a data transmission module, a voiceprint acquisition module, an electrical parameter detection module, an elastic member, and a patch type temperature sensor. It is characterized in that the mounting rack is placed on the support cylinder. Preferably, the length of the mounting rack is greater than the length of the support cylinder. Preferably, the mounting rack is of a U-shaped structure, and mounting holes are provided on three sides of the mounting rack. There are multiple mounting holes on each side of the mounting rack. Preferably, chamfers are provided at the edges of both sides of the mounting bracket. The temperature sensing sleeve is movably placed in the support cylinder through an elastic member. One end of the elastic member is connected to the inner wall of the support cylinder, and the other end of the elastic member is connected to the outer wall of the temperature sensing sleeve. Preferably, there are multiple rows of the elastic members, and the multiple rows of the elastic members are arranged equidistantly along the circumferential direction of the support cylinder. There are multiple elastic members in one row, and the multiple elastic members in one row are arranged equidistantly along the axial direction of the support cylinder. Preferably, the temperature sensing sleeve is made of an insulating elastic material. Preferably, the elastic member is one or a combination of rubber columns, silica gel columns, springs, or elastic sheets. Preferably, the length of the support cylinder is greater than the length of the temperature sensing sleeve, and the space from the end of the support cylinder to the end of the temperature sensing sleeve is the mutual inductance coil limiting groove. Preferably, a variable diameter groove is formed on the side surface of the temperature sensing sleeve. The variable diameter groove is a through groove, the variable diameter groove is a long strip groove, the length of the long strip groove is the same as the length of the temperature sensing sleeve, or the variable diameter groove is a plurality of rectangular grooves arranged equidistantly along the axial direction of the temperature sensing sleeve. The electrical parameter detection module is placed on the inner wall or the outer wall of the support cylinder. Preferably, the electrical parameter detection module is located at the end of the support cylinder, and the mutual inductance coil of the electrical parameter detection module is located in the mutual inductance coil limiting groove. The patch type temperature sensor is placed on the inner wall of the temperature sensing sleeve. Preferably, there are multiple patch type temperature sensors, and the multiple patch type temperature sensors are arranged equidistantly along the circumferential direction of the inner wall of the temperature sensing sleeve. The thermal imaging sensing module is placed on the inner wall of the mounting bracket. Preferably, the imaging head of the thermal imaging sensing module extends out of the mounting bracket. Preferably, there are multiple thermal imaging sensing modules, and the multiple thermal imaging sensing modules are arranged equidistantly along the circumferential direction of the inner wall of the mounting bracket. The voiceprint acquisition module is placed on the inner wall of the mounting bracket. Preferably, there are multiple voiceprint acquisition modules, and the multiple voiceprint acquisition modules are uniformly arranged on the inner wall of the mounting bracket. Preferably, the mounting bracket is provided with an array of micro sound holes at the position corresponding to the voiceprint acquisition module. The data transmission module is placed on the mounting bracket or the support cylinder. Preferably, the thermal imaging sensing module, the voiceprint acquisition module, the electrical parameter detection module, and the patch type temperature sensor are connected to the data transmission module through data lines. Furthermore, first dustproof nets are correspondingly disposed at both ends of the mounting frame, and second dustproof nets are correspondingly disposed at both ends of the support tube, the first dustproof net and the mounting frame are detachably connected, and the second dustproof net and the mounting frame are detachably connected; Furthermore, the mounting frame and the support tube are detachably connected, and the data transmission module is placed on the support tube. When there is only a need to monitor the operating status of the power cable, the mounting frame and the support tube are separated, leaving only the support tube and the components thereon; Furthermore, an extended collection tube is provided on the mounting frame at a position corresponding to the voiceprint collection module, one end of the extended collection tube is connected to the mounting frame, and the diameter of the other end of the extended collection tube gradually increases. The extended collection tube is made of sound insulation material and has a cylindrical or square cavity inside. Beneficial Effects

[0005] 1. Integrate multiple sensors such as temperature, thermal imaging, electrical parameters, voiceprint, etc. to achieve all-round perception and monitoring of the operating status of electrical equipment, reducing the risk of misjudgment or missed judgment caused by single data.

[0006] 2. The support tube and the temperature sensing sleeve are matched with each other, the structure design is compact, the installation is convenient, and it is convenient to flexibly fix on the inner wall of equipment of different models and different spatial positions.

[0007] 3. Redundant design to improve monitoring reliability and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A three-dimensional structural diagram of an online monitoring device for the operating status of electrical equipment according to the present invention; Figure 2 It is a structural schematic diagram of an online monitoring device for the operating status of an electrical equipment according to the present invention; Figure 3 This is a structural diagram of Embodiment 2 of an online monitoring device for the operating status of an electrical equipment according to the present invention; Figure 4 This is a structural diagram of Embodiment 3 of an online monitoring device for the operating status of an electrical equipment according to the present invention; Figure 5 This is a structural schematic diagram of Example 4 of an online monitoring device for the operating status of an electrical equipment according to the present invention. Attached photos

[0009] Among them are: mounting bracket (1), micro-sound hole (2), mounting hole (3), chamfer (4), support cylinder (5), temperature-sensing sleeve (6), variable-diameter groove (7), mutual inductance coil limiting groove (8), thermal imaging sensing module (9), data transmission module (10), voiceprint acquisition module (11), electrical parameter detection module (12), elastic member (13), patch-type temperature sensor (14), first dust-proof net (15), second dust-proof net (16), extended collection cylinder (17). Detailed implementation Embodiment 1

[0010] An on-line monitoring device for the operating state of an electrical device according to the present invention includes a mounting bracket (1), a support cylinder (5), a temperature-sensing sleeve (6), a thermal imaging sensing module (9), a data transmission module (10), a voiceprint acquisition module (11), an electrical parameter detection module (12), an elastic member (13), and a patch-type temperature sensor (14). It is characterized in that the mounting bracket (1) is placed on the support cylinder (5). Preferably, the length of the mounting bracket (1) is greater than the length of the support cylinder (5). Preferably, the mounting bracket (1) is of a U-shaped structure, and mounting holes (3) are provided on three sides of the mounting bracket (1), and there are multiple mounting holes (3) on each side of the mounting bracket (1). Preferably, chamfers (4) are provided at the edges of both sides of the mounting bracket (1). The temperature-sensing sleeve (6) is movably placed in the support cylinder (5) through an elastic member (13). One end of the elastic member (13) is connected to the inner wall of the support cylinder (5), and the other end of the elastic member (13) is connected to the outer wall of the temperature-sensing sleeve (6). Preferably, there are multiple rows of the elastic members (13), and the multiple rows of the elastic members (13) are arranged equidistantly along the circumference of the support cylinder (5). There are multiple elastic members (13) in one row, and the multiple elastic members (13) in one row are arranged equidistantly along the axial direction of the support cylinder (5). Preferably, the temperature-sensing sleeve (6) is made of an insulating elastic material. Preferably, the elastic member (13) is one or a combination of rubber columns, silicone columns, springs, or elastic sheets. Preferably, the length of the support cylinder (5) is greater than the length of the temperature-sensing sleeve (6), and the space from the end of the support cylinder (5) to the end of the temperature-sensing sleeve (6) is a mutual inductance coil limiting groove (8). Preferably, a variable-diameter groove (7) is provided on the side surface of the temperature-sensing sleeve (6). The variable-diameter groove (7) is a through groove. The variable-diameter groove (7) is a long strip groove, and the length of the long strip groove is the same as the length of the temperature-sensing sleeve (6), or the variable-diameter groove (7) is multiple rectangular grooves arranged equidistantly along the axial direction of the temperature-sensing sleeve (6). The electrical parameter detection module (12) is placed on the inner wall or outer wall of the support cylinder (5). Preferably, the electrical parameter detection module (12) is located at the end of the support cylinder (5), and the mutual inductance coil of the electrical parameter detection module (12) is located in the mutual inductance coil limiting groove (8). The patch temperature sensor (14) is placed on the inner wall of the temperature sensing sleeve (6). Preferably, there are multiple patch temperature sensors (14), and the multiple patch temperature sensors (14) are arranged equidistantly along the circumferential direction of the inner wall of the temperature sensing sleeve (6). The thermal imaging sensing module (9) is placed on the inner wall of the mounting bracket (1). Preferably, the imaging head of the thermal imaging sensing module (9) extends outside the mounting bracket (1). Preferably, there are multiple thermal imaging sensing modules (9), and the multiple thermal imaging sensing modules (9) are arranged equidistantly along the circumferential direction of the inner wall of the mounting bracket (1). The voiceprint acquisition module (11) is placed on the inner wall of the mounting bracket (1). Preferably, there are multiple voiceprint acquisition modules (11), and the multiple voiceprint acquisition modules (11) are evenly arranged on the inner wall of the mounting bracket (1). Preferably, the mounting bracket (1) is provided with an array of micro sound holes (2) at the position corresponding to the voiceprint acquisition module (11). The data transmission module (10) is placed on the mounting bracket (1) or the support cylinder (5). Preferably, the thermal imaging sensing module (9), the voiceprint acquisition module (11), the electrical parameter detection module (12) and the patch temperature sensor (14) are connected to the data transmission module (10) through data lines. Preferably, the circuit board sizes of the thermal imaging sensing module (9), the voiceprint acquisition module (11), the electrical parameter detection module (12), the patch temperature sensor (14) and the data transmission module (10) do not exceed 50mm * 50mm. During use, the temperature sensing sleeve (6) is sleeved on the main wire or main cable of the device, the mounting bracket is fixed on the inner wall of the device through the mounting holes (3), and the corresponding mounting holes (3) on the corresponding surface are selected according to the needs of the mounting position. The patch temperature sensor (14) contacts the main wire, and the mutual inductance coil of the electrical parameter detection module (12) is sleeved on the main wire to collect the temperature and electrical parameters such as voltage and current of the main wire during the operation of the device. The thermal imaging sensing module (9) collects the operating temperature of the device, the voiceprint acquisition module (11) collects the operating sound of the device, and the above data is transmitted to the monitoring background through the data transmission module (10). Embodiment 2

[0011] The difference between this embodiment and Embodiment 1 is that: at both ends of the mounting frame (1), there are first dust-proof nets (15) correspondingly, at both ends of the support cylinder (5), there are second dust-proof nets (16) correspondingly, the connection between the first dust-proof net (15) and the mounting frame (1) is detachable, and the connection between the second dust-proof net (16) and the mounting frame (1) is detachable; during use, it can effectively prevent dust, dust or other particulate matters in the external environment from entering the monitoring device, avoid the surface of the sensor being contaminated or accumulating dust, thereby ensuring that the performance of precision devices such as the thermal imaging sensing module (9), the voiceprint acquisition module (11), and the patch temperature sensor (14) is not affected by the external environment, and at the same time is convenient for replacement. Embodiment 3

[0012] The difference between this embodiment and Embodiment 1 is that: the mounting frame (1) and the support cylinder (5) are detachably connected, and the data transmission module (10) is placed on the support cylinder (5). When there is only a monitoring requirement for the operating state of the power cable, the mounting frame (1) and the support cylinder (5) are separated, and only the support cylinder (5) and the components thereon are left; during use, it can be flexibly configured according to the monitoring requirements, has strong adaptability, and simplifies the installation process. Embodiment 4

[0013] The difference between this embodiment and Embodiment 1 is that: at the position of the voiceprint acquisition module (11) on the mounting frame (1), there is an extended collection cylinder (17). One end of the extended collection cylinder (17) is connected to the mounting frame (1) in a communicating manner, the diameter of the other end of the extended collection cylinder (17) gradually increases, the extended collection cylinder (17) is made of sound-insulating material, and is provided with a cylindrical or square cavity inside; during use, through the sound wave guiding and focusing effects, the sound emitted during the operation of the equipment can be more effectively guided to the sensing surface of the voiceprint acquisition module (11), improving the acquisition ability of weak sound signals; The design that the length of the mounting frame (1) is greater than the length of the support cylinder (5) can provide sufficient installation positions and layout spaces for multiple sensing modules, avoid mutual interference between the modules, improve the heat dissipation performance and maintenance convenience of the device, and at the same time can expand the monitoring ranges of the thermal imaging sensing module (9) and the voiceprint acquisition module (11); The design that chamfers (4) are provided at the edges of both sides of the mounting frame (1) can make the edges of the mounting frame (1) have a smooth transition, prevent construction personnel from being scratched during installation and disassembly, reduce the risk of the internal lines or cables of the equipment being cut or worn, and improve safety; The elastic members (13) are arranged in multiple rows. The multiple rows of elastic members (13) are equidistantly arranged circumferentially along the support cylinder (5). There are multiple elastic members (13) in one row, and the multiple elastic members (13) in one row are equidistantly arranged axially along the support cylinder (5). This design can form a three-dimensional support network within the support cylinder (5), creating a multi-point shock-absorbing and buffering network, realizing the stable suspension and flexible positioning of the temperature-sensitive sleeve (6). At the same time, it provides an appropriate pre-tightening force between the outer wall of the temperature-sensitive sleeve (6) and the inner wall of the support cylinder (5), enabling the temperature-sensitive sleeve (6) to fit closely to the outer surface of the main cable of the equipment, ensuring good contact between the patch-type temperature sensor (14) and the cable, guaranteeing the accuracy and sensitivity of temperature data acquisition, and being able to adapt to various cable specifications; A variable-diameter groove (7) is formed on the side of the temperature-sensitive sleeve (6). The variable-diameter groove (7) is a through groove. The variable-diameter groove (7) is a long strip groove, and the length of the long strip groove is the same as the length of the temperature-sensitive sleeve (6), or the variable-diameter groove (7) is designed as multiple rectangular grooves arranged equidistantly axially along the temperature-sensitive sleeve (6). This can cause the temperature-sensitive sleeve (6) to open moderately during installation, better adapt to the surfaces of cables with different diameters or slightly deformed cables, achieve interference fit and firm adhesion, ensure that the temperature sensor can firmly contact the outer wall of the cable, and improve the accuracy of data acquisition; in scenarios with significant ambient temperature changes such as outdoor monitoring, it can reduce the deformation stress of the temperature-sensitive sleeve (6) caused by temperature differences and improve the reliability of monitoring; There are multiple patch-type temperature sensors (14), multiple thermal imaging sensing modules (9), and multiple voiceprint acquisition modules (11). This design can simultaneously monitor multiple key parts of the target device, avoid the blind area problem existing in single-point monitoring. The redundant design can form a cross-comparison mechanism and reduce the risk of misjudgment caused by the failure of a single-point sensor; It achieves the purpose of being able to integrate multiple sensing modules, real-time monitor parameters such as the temperature, voltage, current, heat distribution, and operating sound of the electrical equipment, and is easy to install.

[0014] It should be noted that unless otherwise clearly specified and defined, the terms "placed", "connected", and "joined" should be understood in a broad sense. For example, it can be fixed connection methods such as hemmed connection, rivet connection, pin connection, adhesive connection, and welded connection, or detachable connection methods such as threaded connection, snap connection, and hinge connection, or integral connection. It can also be electrical connection, or directly connected, or indirectly connected through an intermediate medium. It can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0015] It should be further pointed out that when describing the above specific embodiments, for the sake of simplicity and clarity, only the differences from other embodiments are described. However, those skilled in the art should be aware that the above specific embodiments are also independent technical solutions in themselves.

Claims

1. An on-line monitoring device for the operating state of an electrical equipment, comprising a mounting rack, a support cylinder, a temperature-sensitive sleeve, a thermal imaging sensing module, a data transmission module, a voiceprint acquisition module, an electrical parameter detection module, an elastic member and a patch-type temperature sensor, characterized in that: The mounting bracket is placed on the support cylinder. The temperature sensing sleeve is movably placed in the support cylinder through an elastic member. One end of the elastic member is connected to the inner wall of the support cylinder, and the other end of the elastic member is connected to the outer wall of the temperature sensing sleeve. The electrical parameter detection module is placed on the inner wall or the outer wall of the support cylinder. The patch type temperature sensor is placed on the inner wall of the temperature sensing sleeve. The thermal imaging sensing module is placed on the inner wall of the mounting bracket. The voiceprint acquisition module is placed on the inner wall of the mounting bracket. The data transmission module is placed on the mounting bracket or the support cylinder.

2. The on-line monitoring device for the operating state of an electrical device according to claim 1, characterized in that First dust-proof nets are correspondingly arranged at both ends of the mounting bracket, and second dust-proof nets are correspondingly arranged at both ends of the support cylinder. The connection between the first dust-proof net and the mounting bracket is detachable, and the connection between the second dust-proof net and the mounting bracket is detachable.

3. An on-line monitoring device for the operating state of an electrical device according to claim 1, characterized in that The mounting bracket and the support cylinder are detachably connected. The data transmission module is placed on the support cylinder. When there is only a monitoring requirement for the operating state of the power cable, the mounting bracket and the support cylinder are separated, and only the support cylinder and the components thereon are left.

4. An on-line monitoring device for the operating state of an electrical device according to claim 1, characterized in that An extended collection cylinder is provided at the position corresponding to the voiceprint acquisition module on the mounting bracket. One end of the extended collection cylinder is communicated with the mounting bracket, and the diameter of the other end of the extended collection cylinder gradually increases. The extended collection cylinder is made of sound insulation material and is provided with a cylindrical or square cavity inside.

5. An on-line monitoring device for the operating state of an electrical device according to claim 1, characterized in that The length of the mounting bracket is greater than the length of the support cylinder. The mounting bracket is of a U-shaped structure. Mounting holes are opened on three sides of the mounting bracket. There are multiple mounting holes on each side of the mounting bracket. Chamfers are provided at the edges of both sides of the mounting bracket.

6. The on-line monitoring device for the operating state of an electrical device according to claim 1, characterized in that There are multiple rows of the elastic members. The multiple rows of elastic members are arranged equidistantly along the circumferential direction of the support cylinder. There are multiple elastic members in one row, and the multiple elastic members in one row are arranged equidistantly along the axial direction of the support cylinder. The temperature sensing sleeve is made of insulating elastic material. The elastic member is one or a combination of rubber columns, silicone columns, springs or elastic sheets.

7. An on-line monitoring device for the operating state of an electrical device according to claim 1, characterized in that The length of the support cylinder is greater than the length of the temperature sensing sleeve. The space from the end of the support cylinder to the end of the temperature sensing sleeve is the mutual inductance coil limiting groove. A variable diameter groove is opened on the side of the temperature sensing sleeve. The variable diameter groove is a through groove. The variable diameter groove is a long strip groove. The length of the long strip groove is the same as the length of the temperature sensing sleeve, or the variable diameter groove is multiple rectangular grooves arranged equidistantly along the axial direction of the temperature sensing sleeve.

8. An on-line monitoring device for the operating state of an electrical device according to claim 1, characterized in that The electrical parameter detection module is located at the end of the support cylinder. The mutual inductance coil of the electrical parameter detection module is located in the mutual inductance coil limiting groove. There are multiple patch type temperature sensors, and the multiple patch type temperature sensors are arranged equidistantly along the circumferential direction of the inner wall of the temperature sensing sleeve. The imaging head of the thermal imaging sensing module extends out of the mounting bracket.

9. The on-line monitoring device for the operating state of an electrical device according to claim 1, characterized in that There are multiple thermal imaging sensing modules, and the multiple thermal imaging sensing modules are arranged equidistantly along the circumferential direction of the inner wall of the mounting bracket. There are multiple voiceprint acquisition modules, and the multiple voiceprint acquisition modules are evenly arranged on the inner wall of the mounting bracket. Array type micro sound holes are provided at the position corresponding to the voiceprint acquisition module on the mounting bracket.

10. The on-line monitoring device for the operating state of an electrical equipment according to claim 1, characterized in that The thermal imaging sensing module, voiceprint acquisition module, electrical parameter detection module, and patch temperature sensor are connected through data lines and a data transmission module; the circuit board sizes of the thermal imaging sensing module, voiceprint acquisition module, electrical parameter detection module, patch temperature sensor, and data transmission module do not exceed 50mm * 50mm.

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