A temperature anomaly monitoring system for distribution network

Abstract

The present invention discloses a temperature anomaly monitoring system for a distribution network, which belongs to the field of intelligent monitoring of distribution networks. Through the setting of a light guide array, when an abnormal temperature rise occurs in a distribution station, an intelligent inflation component inflates the light guide array so that the adjacent parts of the light guide array gradually contact and conduct with each other. On the one hand, when the light guide array is partially conducted, the laser beam is blocked, thereby realizing the first early warning of the temperature anomaly of the substation, and the urgency of the temperature anomaly can be judged according to the length of the laser beam. On the other hand, as time goes by, the light guide array is fully conducted, and at this time the external early warning light is lit, and a second early warning is realized through this change. The double early warning makes the early warning effect of abnormal temperature changes in the substation in the distribution network better. In addition, after the second early warning, the staff can quickly narrow the scope of the temperature anomaly according to the light, greatly shorten the time required for the hot spot investigation, effectively avoid the expansion of the impact caused by abnormal high temperature, and reduce safety hazards.

Description

Technical Field

[0001] The present invention relates to the field of intelligent monitoring of distribution networks, and more particularly to a temperature anomaly monitoring system for distribution networks. Background Art

[0002] A substation is a location within a power system that transforms voltage and current, receives electricity, and distributes it. The substation within a power plant is a step-up substation, whose function is to boost the voltage of electricity generated by the generator and feed it into the high-voltage grid.

[0003] Substations are usually equipped with many electrical equipment. When the electrical equipment is started and operated at the same time, a large amount of heat is generated. In order to ensure the safe operation of the substation, temperature monitoring and early warning are usually carried out. However, general temperature monitoring and early warning are only issued when abnormally high temperatures have occurred. After receiving the early warning information, the staff needs to check the specific hot spots, resulting in a large time span between the early warning and the manual intervention and maintenance of the high temperature. As a result, the impact of abnormally high temperatures is easy to expand, and in severe cases, it may even cause a fire, posing a major safety hazard. Summary of the Invention

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present invention is to provide a temperature anomaly monitoring system for a distribution network. Through the setting of a light guide array, when an abnormal temperature rise occurs in a distribution station, the intelligent inflation component inflates the light guide array so that the adjacent left and right parts of the light guide array gradually contact and become conductive. On the one hand, when the light guide array is partially conductive, the laser beam is blocked, and the signal is fed back to the control center to achieve the first early warning of the abnormal temperature in the substation. On the other hand, as time goes on, the light guide array is fully conductive, and the external warning light is lit at this time. A second early warning is achieved through this change. The double warning makes the early warning effect of abnormal temperature changes in substations in the distribution network better. In addition, after the second warning, the staff can quickly narrow the scope of the temperature anomaly according to the light, greatly shorten the time required for the hot spot investigation, effectively avoid the expansion of the impact caused by abnormal high temperature, and reduce safety hazards.

[0006] Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A temperature anomaly monitoring system for a distribution network includes a control center, which is signal-connected to a power distribution module, a monitoring module, and an early warning module. The power distribution module includes multiple substations, the monitoring module includes multiple continuous temperature transmitters and high-definition cameras respectively installed on the substations, the early warning module includes multiple light guide arrays corresponding to the multiple substations, multiple groups of intelligent inflatable components matching the light guide arrays, a laser, and an alarm light. The high-definition camera, continuous temperature transmitter, intelligent inflatable component, and laser are all signal-connected to the control center. The light guide array includes a protective cover installed on the inner wall of the substation, a plurality of static light guide rods and dynamic light guide rods spaced apart from each other, the static light guide rods and dynamic light guide rods are both located within the protective cover, a static string conductor is connected to the static light guide rod, and a dynamic string conductor is connected to the dynamic light guide rod. The intelligent inflatable component and the static light guide rod are both fixedly mounted on the inner wall of the distribution station, and the inflatable end of the intelligent inflatable component is communicated with the lower end of the dynamic light guide rod.

[0009] Furthermore, each of the light guide arrays is located within the shooting range of a high-definition camera, and the light guide array is located within the optimal viewing angle of the nearest high-definition camera.

[0010] Furthermore, there are two alarm lights on each of the light guide arrays, one alarm light is located outside the protective cover, and the other alarm light is located inside the protective cover, and the two alarm lights are connected in parallel. The protective cover is made of transparent, high-temperature resistant flame retardant material.

[0011] Furthermore, the warning light and the plurality of static light guide rods and the dynamic light guide rods are connected in series, and the two static light guide rods at the outermost edges are electrically connected to the power distribution station.

[0012] Furthermore, the static light-guiding rod includes a vertical pole fixed to the inner wall of the distribution station and a static air-connecting ball fixedly connected to the end of the vertical pole. A light-passing hole is drilled in the middle of the static air-connecting ball. The transmitting end and the receiving end of the laser are located on the same straight line as the center lines of the light-passing holes on the multiple static light-guiding rods.

[0013] Furthermore, the left and right ends of the static air connecting ball are both set with flat surfaces, and the static string wire is connected to the flat surface. The static string wire includes two static metal contacts and a static wire respectively located on the flat end surfaces. The left and right ends of the static wire are fixedly embedded in the flat surface of the static air connecting ball, the middle part of the static wire movably passes through the vertical pole, and the static metal contact is in contact with the end of the static wire.

[0014] Furthermore, the conductive end of the static wire is in an open ring structure along the light-passing hole, and the open ring part is fixedly embedded in the surface of the static air-connecting ball and protrudes from the surface. A plurality of support rods are connected between the static metal contact piece and the surface of the static air-connecting ball.

[0015] Furthermore, the dynamic light-guiding rod includes a connecting tube connected to the intelligent inflatable component and a wire bag fixedly connected to the upper end of the connecting tube. The wire bag includes a light-shielding hemisphere fixed to the connecting tube and a light-transmitting hemisphere fixedly connected to the upper end of the light-shielding hemisphere. The dynamic string conductor is attached to the outer surface of the light-shielding hemisphere.

[0016] Furthermore, the light-transmitting hemisphere is a transparent elastic structure, and the light-shielding hemisphere is a non-transparent elastic structure.

[0017] Furthermore, the dynamic string conductor includes a plurality of follower conductors electrically connected to each other and a follower contact fixedly connected to one end of the follower conductor near the middle of the wire bag. The outer end of the light-proof hemisphere is fixedly connected to a plurality of limit rods corresponding to the follower conductors respectively. The follower conductors movably pass through the limit rods, and the follower conductors between two adjacent limit rods are in a folded state.

[0018] Beneficial effects

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] (1) This scheme uses the setting of light guide array. When the temperature of the distribution station rises abnormally, the intelligent inflation component inflates the light guide array so that the adjacent parts of the light guide array gradually contact and conduct. On the one hand, when the light guide array is partially conducted, the laser beam is blocked, and the signal is fed back to the control center, realizing the first warning of the abnormal temperature of the substation. On the other hand, as time goes by, the light guide array is fully conducted. At this time, the external warning light is lit, and the second warning is realized through this change. The double warning makes the warning effect of abnormal temperature changes in the substation in the distribution network better. In addition, after the second warning, the staff can quickly narrow the scope of the temperature abnormality according to the light, greatly shorten the time required for the hot spot investigation, effectively avoid the expansion of the impact caused by abnormal high temperature, and reduce safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the main system block diagram of the present invention;

[0022] Figure 2 Schematic diagram of the structure of the light guide array of the present invention;

[0023] Figure 3 This is a structural schematic diagram of the light guide array of the present invention when it is just inflated;

[0024] Figure 4 This is a structural schematic diagram of the present invention when inflation causes the dynamic light guide rod and the static light guide rod to be connected;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the static light guide rod of the present invention;

[0026] Figure 6Schematic diagram of the structure of the static metal contact portion of the static light guide rod of the present invention;

[0027] Figure 7 This is a schematic structural diagram of the front side of the dynamic light guide rod of the present invention;

[0028] Figure 8 for Figure 7 Schematic diagram of the structure at point A.

[0029] Description of the numbers in the figure:

[0030] 1 protective cover, 2 warning light, 3 laser, 4 static light guide rod, 41 vertical pole, 42 static air connecting ball, 5 dynamic light guide rod, 51 connecting tube, 521 light-passing hemisphere, 522 light-shielding hemisphere, 61 static metal contact, 62 static wire, 7 light-passing hole, 8 dynamic string wire, 81 follow-up wire, 82 follow-up contact, 9 limit rod. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work shall fall within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances. Example

[0034] See also Figure 1A temperature anomaly monitoring system for a distribution network includes a control center, which is signal-connected to a power distribution module, a monitoring module, and an early warning module. The power distribution module includes multiple substations. The monitoring module includes multiple continuous temperature transmitters and high-definition cameras respectively installed on the substations. The early warning module includes multiple light guide arrays corresponding to the multiple substations, multiple groups of intelligent inflatable components matching the light guide arrays, a laser 3, and an alarm light 2. The high-definition camera, continuous temperature transmitter, intelligent inflatable component, and laser 3 are all signal-connected to the control center.

[0035] Each light guide array is within the shooting range of the high-definition camera, and the light guide array is located within the optimal viewing angle of the nearest high-definition camera, so that changes occurring at the light guide array can be clearly captured, making it easier for staff to narrow the scope of the temperature anomaly based on image information, shorten the investigation time, increase the speed of handling temperature anomalies, and significantly reduce safety hazards.

[0036] As needed, a threshold is set in the continuous temperature transmitter. The threshold represents the temperature difference change detected in unit time. When the temperature difference change exceeds the threshold, the signal is fed back to the control center, and the control center controls the inflation of the intelligent inflatable component.

[0037] like Figure 3 When inflating, each group of multiple intelligent inflatable components is inflated one by one in the direction away from the laser receiving end, so that the blocking of the laser light 3 and the lighting of the alarm light 2 are two separate processes, thereby presenting a two-stage warning, making the warning effect better.

[0038] The temperature difference between the distribution station of two adjacent smart inflatable components when inflating is 3-5°. When the last smart inflatable component is inflated, the temperature of the distribution station is no higher than the maximum safe operating temperature, and the temperature difference between the two does not exceed 5°C.

[0039] Therefore, the emission distance of the light on the laser 3 can roughly reflect the temperature conditions of the distribution station, so that the staff can judge the urgency of the abnormal temperature of the distribution station based on the warning of the length of the laser beam of the laser 3, and effectively ensure that the staff can take corresponding countermeasures in time.

[0040] See also Figure 2 In the figure, a represents the inner wall of the transformer, b represents the intelligent inflatable component, and the light guide array includes a protective cover 1 installed on the inner wall of the substation, a plurality of static light guide rods 4 and dynamic light guide rods 5 that are spaced apart from each other, and the static light guide rods 4 and the dynamic light guide rods 5 are both located in the protective cover 1. The static light guide rod 4 is connected to a static string conductor, and the dynamic light guide rod 5 is connected to a dynamic string conductor 8. The intelligent inflatable component and the static light guide rod 4 are both fixedly installed on the inner wall of the distribution station, and the inflatable end of the intelligent inflatable component is connected to the lower end of the dynamic light guide rod 5.

[0041] There are two warning lights 2 on each light guide array, one warning light 2 is located outside the protective cover 1, and the other warning light 2 is located inside the protective cover 1, and the two warning lights 2 are connected in parallel. The protective cover 1 is made of a transparent, high-temperature resistant flame-retardant material. The protective cover 1 effectively protects the internal static light guide rod 4 and the dynamic light guide rod 5, so that when an accidental fire occurs and the smoke is large, the various components inside the protective cover 1 can be damaged relatively late. When taking artificial fire-fighting measures such as fire extinguishing, the internal warning light 2 is still in the state of lighting, which can provide an early warning of the source of heat, so as to facilitate faster elimination of the fire.

[0042] The warning light 2 and multiple static light guide rods 4 and dynamic light guide rods 5 are connected in series, and the two static light guide rods 4 at the edge are electrically connected to the power distribution station. When inflation causes the multiple dynamic light guide rods 5 to expand and contact the adjacent static light guide rods 4, the multiple static light guide rods 4 and dynamic light guide rods 5 are turned on, causing the warning light 2 to light up, achieving a second early warning.

[0043] See also Figure 5 The static light guide rod 4 includes a vertical pole 41 fixed to the inner wall of the distribution station and a static air connecting ball 42 fixedly connected to the end of the vertical pole 41. A light hole 7 is drilled in the middle of the static air connecting ball 42. The transmitting end and the receiving end of the laser 3 are located on the same straight line as the center lines of the light holes 7 on the multiple static light guide rods 4, which effectively ensures that the laser light emitted by the laser 3 can pass through the multiple static light guide rods 4 to reach the receiving end. When the intelligent inflatable component starts to inflate, the dynamic light guide rod 5 expands and gradually blocks the laser beam emitted by the laser 3, making the length of the laser beam shorter and shorter, which is convenient for the staff to judge the urgency of the internal temperature abnormality.

[0044] The left and right ends of the static air connecting ball 42 are both set with flat surfaces, which facilitates the stable contact between the eastern string wire on the dynamic light guide rod 5 and the static string wire on the static light guide rod 4. Compared with the spherical surface, it effectively avoids the occurrence of poor contact. The static string wire is connected on the flat surface. The static string wire includes two static metal contacts 61 and a static wire 62 respectively located on the flat end faces. The left and right ends of the static wire 62 are fixedly embedded in the flat surface of the static air connecting ball 42. The middle part of the static wire 62 movably passes through the vertical pole 41, and the static metal contact 61 is in contact with the end of the static wire 62.

[0045] like Figure 6 The conductive end of the static wire 62 is in an open ring structure along the mouth of the light hole 7, and the open ring part is fixedly embedded in the surface of the static air connecting ball 42 and protrudes from the surface. A plurality of support rods are connected between the static metal contact piece 61 and the surface of the static air connecting ball 42, so that there is a certain gap on the back of the static metal contact piece 61 to facilitate heat dissipation, effectively preventing the heat generated at the contact point from overflowing in time when the dynamic light guide rods 5 and 6 are turned on.

[0046] See also Figure 7-8The dynamic light-guiding rod 5 includes a connecting tube 51 connected to the intelligent inflatable component and a wire bag fixedly connected to the upper end of the connecting tube 51. The wire bag includes a light-shielding hemisphere 522 fixed to the connecting tube 51 and a light-transmitting hemisphere 521 fixedly connected to the upper end of the light-shielding hemisphere 522. The dynamic string conductor 8 is attached to the outer surface of the light-shielding hemisphere 522.

[0047] The light-transmitting hemisphere 521 is a transparent elastic structure, and the light-shielding hemisphere 522 is a non-transparent elastic structure. When the dynamic light-guiding rod 5 expands to the point of contact with the inner wall of the protective cover 1 and the two adjacent static light-guiding rods 4, the diameter of the light-shielding hemisphere 522 is larger than its original diameter. At this time, the light-shielding hemisphere 522 is higher than the position of the laser beam, thereby blocking the laser beam. During the initial inflation process, when it has not yet expanded or has expanded to a small extent, the light-transmitting hemisphere 521 is not easy to block the laser beam, thereby enabling outside staff to more accurately judge abnormal temperature changes based on the length of the laser beam.

[0048] The dynamic string conductor 8 includes multiple follower conductors 81 electrically connected to each other and a follower contact 82 fixedly connected to the follower conductor 81 near one end of the middle of the line bag. The setting of multiple follower contact pieces 82 effectively avoids the situation where the static light guide rod 4 and the dynamic light guide rod 5 are difficult to conduct due to the uncertain angle of the dynamic light guide rod 5 due to expansion. The outer end of the light-shielding hemisphere 522 is fixedly connected to multiple groups of limit rods 9 corresponding to the follower conductor 81 respectively. The follower conductor 81 movably passes through the limit rod 9. The follower conductor 81 between two adjacent limit rods 9 is in a folded state, so that the dynamic string conductor 8 as a whole can extend with the expansion of the line bag, so that it can approach the static metal contact 61 and contact it, thereby realizing the conduction of multiple static light guide rods 4 and the dynamic light guide rod 5, effectively ensuring that the alarm light 2 can be lit and early warning is achieved.

[0049] Through the setting of light guide array, such as Figure 3-4 When the temperature in the distribution station rises abnormally, the intelligent inflation component inflates the light guide array, so that the adjacent parts of the light guide array gradually contact each other, turn on and connect in series. On the one hand, when the light guide array is partially turned on, the laser beam is blocked, and the signal is fed back to the control center to achieve the first early warning of the abnormal temperature in the substation. On the other hand, as time goes on, the light guide array is fully turned on. At this time, the external warning light is lit, and a second early warning is achieved through this change. The double warning makes the early warning effect of abnormal temperature changes in the substation in the distribution network better. In addition, after the second warning, the staff can quickly narrow the scope of the temperature abnormality according to the light, greatly shorten the time required to check the hot spots, improve the speed of handling temperature abnormalities, effectively avoid the expansion of the impact caused by abnormal high temperature, and greatly reduce safety hazards.

[0050] The above description is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved conception of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A temperature anomaly monitoring system for a distribution network, comprising a control center, characterized in that: The control center signal is connected to a power distribution module, a monitoring module and an early warning module. The power distribution module includes a plurality of substations. The monitoring module includes a plurality of continuous temperature transmitters and high-definition cameras respectively installed on the substations. The early warning module includes a plurality of light guide arrays corresponding to the plurality of substations, a plurality of groups of intelligent inflatable components matched with the light guide arrays, a laser (3) and an alarm light (2). The high-definition camera, the continuous temperature transmitter, the intelligent inflatable component and the laser (3) are all connected to the control center signal. The light guide array comprises a protective cover (1) installed on the inner wall of the substation, a plurality of static light guide rods (4) and a dynamic light guide rod (5) that are spaced apart from each other, the static light guide rods (4) and the dynamic light guide rods (5) are both located in the protective cover (1), the static light guide rods (4) are connected to static string conductors, and the dynamic light guide rods (5) are connected to dynamic string conductors (8), the intelligent inflatable component and the static light guide rods (4) are both fixedly installed on the inner wall of the substation, and the inflatable end of the intelligent inflatable component is communicated with the lower end of the dynamic light guide rod (5).

2. The temperature anomaly monitoring system for a power distribution network according to claim 1, characterized in that: Each of the light guide arrays is located within the shooting range of a high-definition camera, and the light guide array is located within the optimal viewing angle of the nearest high-definition camera.

3. The temperature anomaly monitoring system for a power distribution network according to claim 2, characterized in that: Two warning lights (2) are provided on each light guide array, one warning light (2) is located outside the protective cover (1), and the other warning light (2) is located inside the protective cover (1), and the two warning lights (2) are connected in parallel. The protective cover (1) is made of a transparent, high-temperature-resistant, flame-retardant material.

4. The temperature anomaly monitoring system for a power distribution network according to claim 1, characterized in that: The warning light (2) and the plurality of static light guide rods (4) and the dynamic light guide rods (5) are connected in series, and the two static light guide rods (4) at the outermost edges are electrically connected to the substation.

5. The temperature anomaly monitoring system for a power distribution network according to claim 4, characterized in that: The static light-guiding rod (4) comprises a vertical pole (41) fixed to the inner wall of the substation and a static air-connecting ball (42) fixedly connected to the end of the vertical pole (41). A light-through hole (7) is bored in the middle of the static air-connecting ball (42). The transmitting end and the receiving end of the laser (3) are located on the same straight line as the center lines of the light-through holes (7) on the multiple static light-guiding rods (4).

6. The temperature anomaly monitoring system for a power distribution network according to claim 5, characterized in that: The left and right ends of the static air connecting ball (42) are both arranged as flat surfaces, the static string conductor is connected to the flat surface, the static string conductor includes two static metal contact pieces (61) and a static conductor (62) respectively located on the flat end surfaces, the left and right ends of the static conductor (62) are both fixedly embedded in the flat surface of the static air connecting ball (42), the middle part of the static conductor (62) movably passes through the vertical pole (41), and the static metal contact piece (61) contacts the end of the static conductor (62).

7. The temperature anomaly monitoring system for a power distribution network according to claim 6, characterized in that: The conductive end of the static wire (62) is in an open ring structure along the mouth of the light hole (7), and the open ring portion is fixedly embedded in the surface of the static air connecting ball (42) and protrudes from the surface. A plurality of support rods are connected between the static metal contact piece (61) and the surface of the static air connecting ball (42).

8. The temperature anomaly monitoring system for a power distribution network according to claim 1, characterized in that: The dynamic light-guiding rod (5) comprises a connecting tube (51) connected to the intelligent inflatable component and a line bag fixedly connected to the upper end of the connecting tube (51); the line bag comprises a light-shielding hemisphere (522) fixed to the connecting tube (51) and a light-transmitting hemisphere (521) fixedly connected to the upper end of the light-shielding hemisphere (522); and the dynamic string conductor (8) is attached to the outer surface of the light-shielding hemisphere (522).

9. The temperature anomaly monitoring system for a power distribution network according to claim 8, characterized in that: The light-transmitting hemisphere (521) is a transparent elastic structure, and the light-shielding hemisphere (522) is a non-transparent elastic structure.

10. The temperature anomaly monitoring system for a power distribution network according to claim 8, characterized in that: The dynamic string conductor (8) comprises a plurality of mutually electrically connected follower conductors (81) and a follower contact piece (82) fixedly connected to one end of the follower conductor (81) near the middle of the line bag. The outer end of the light-shielding hemisphere (522) is fixedly connected to a plurality of groups of limit rods (9) corresponding to the follower conductors (81). The follower conductors (81) movably penetrate the limit rods (9), and the follower conductors (81) between two adjacent limit rods (9) are in a folded state.

Images