A mobile monitoring device for UHV substations applicable to harsh environments

Abstract

The present invention relates to the field of substation monitoring equipment. Specifically, it relates to a mobile monitoring equipment for ultra-high voltage substations suitable for harsh environments, which includes an inspection trolley. The inspection trolley includes a base and a protective housing arranged at the base. The protective housing includes an inner housing covering the cavity of the base and an outer housing arranged outside the inner housing. A connection channel is formed between the inner housing and the outer housing; an air intake channel and an exhaust channel communicating with both ends of the connection channel are also provided in the base, and an exhaust port communicating with the exhaust channel is provided at the base; an air intake mechanism for heating outside air and sending it into the air intake channel is also provided in the base. The present invention avoids the fogging or frosting of the infrared camera and visible light camera used for detection during substation monitoring, so that the invention can operate stably in harsh environments, thereby better improving the monitoring effect of substation equipment.

Description

Technical Field

[0001] The present invention belongs to the technical field of substation monitoring equipment, and particularly relates to a mobile monitoring equipment for ultra-high voltage substations applicable to harsh environments. Background Art

[0002] A substation refers to a place in the power system where voltage and current are transformed, and electric energy is received and distributed. The substation in a power plant is a step-up substation, and its function is to step up the electric energy generated by the generator and feed it into the high-voltage power grid.

[0003] Whether the substation operates normally determines whether the economy of its power supply area can develop stably. The daily status monitoring data of the substation is an important basis for judging its performance. At present, the monitoring method for substations is usually manual inspection; manual inspection has problems such as large workload, high requirements for weather, and low work efficiency.

[0004] At present, there is also a method of monitoring substations through intelligent robot inspections. For example, a Chinese patent with the publication number CN115665554A discloses a substation inspection robot, which realizes automatic monitoring of the substation by setting a camera at the mobile seat. However, since the camera is exposed to the air, there is still a problem that it cannot adapt well to extreme environments. For example, in snowy and icy weather, the camera is prone to problems such as fogging and frosting, which interfere with the monitoring. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned existing technologies and provide a mobile monitoring equipment for ultra-high voltage substations applicable to harsh environments.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] The present invention provides a mobile monitoring equipment for ultra-high voltage substations applicable to harsh environments, including an inspection trolley. The inspection trolley includes a base, and a base cavity is provided in the base. The inspection trolley also includes a protective housing arranged at the base. The protective housing includes an inner housing covering the base cavity and an outer housing arranged outside the inner housing. A connection channel is formed between the inner housing and the outer housing. Observation ports are provided on both the outer housing and the inner housing, and glass sealing covers are provided at the observation ports. An installation bracket is provided in the inner housing, and an infrared camera and a visible light camera facing the glass sealing cover are provided at the installation bracket. An intake channel and an exhaust channel communicating with both ends of the connection channel are further provided in the base, and an exhaust port communicating with the exhaust channel is provided at the base. An intake mechanism for heating outside air and sending it into the intake channel is also provided in the base.

[0008] Further, the exhaust port is arranged at the bottom of the base.

[0009] Furthermore, the intake mechanism includes a heating chamber communicating with the intake passage. An electric heating wire is provided in the heating chamber. An air intake hole communicating with the heating chamber is provided at the side wall of the base. A blower covering all the air intake holes is provided at the base, and the blower is used to send external air into the heating chamber.

[0010] Furthermore, a filter cotton installation chamber located between the air intake hole and the heating chamber is provided in the base. The filter cotton installation chamber communicates with the heating chamber, and a filter cotton plate is provided in the filter cotton installation chamber.

[0011] Furthermore, a cavity air intake is provided at the bottom end surface of the base cavity. A baffle capable of blocking the cavity air intake and the intake passage is provided in the base. A first opening of the baffle located at the cavity air intake and a second opening of the baffle located at the intake passage are provided at the baffle. The horizontal distance between the first opening and the second opening of the baffle is smaller than the horizontal distance between the cavity air intake and the intake passage. The remaining length of the baffle on the right side of the second opening is greater than the width of the intake passage. A strip-shaped through hole for discharging the air in the base cavity is provided at the upper end of the inner shell. A vertical plate located in the exhaust passage is provided at the baffle, and the length of the vertical plate is greater than the vertical distance between the strip-shaped through hole and the baffle.

[0012] Furthermore, the base is also provided with a bottom plate. A transition chamber communicating with the heating chamber and the intake passage is formed between the bottom plate and the bottom end surface of the base cavity. A driving mechanism for driving the baffle to slide to block one of the cavity air intake and the intake passage is provided in the transition chamber; the vertical plate can move along with the baffle and can block the strip-shaped through hole when the baffle blocks the cavity air intake.

[0013] Furthermore, the driving mechanism includes a set of first strip-shaped plates provided at the bottom plate. A lead screw is rotatably provided at the first strip-shaped plate, and a strip-shaped plate air intake is also provided at the first strip-shaped plate; the driving mechanism further includes a second strip-shaped plate provided at the bottom plate and used for sealing the side end opening of the transition chamber; a lead screw slide connected to the baffle is provided at the lead screw. A speed reducer is provided at the side wall of the base, the output shaft of the speed reducer is connected to the lead screw, and a motor is connected to the input shaft of the speed reducer.

[0014] Furthermore, a partition is provided in the base cavity. The partition divides the base cavity into an equipment installation chamber and a battery installation chamber. The number of the cavity air intakes is two and they are respectively provided at the bottom walls of the equipment installation chamber and the battery installation chamber.

[0015] Furthermore, a battery replacement port communicating with the battery installation chamber is provided at the side wall of the inspection trolley, and a sealing door is provided at the battery replacement port.

[0016] Furthermore, an outer cover covering the blower is provided on the outer side wall of the inspection trolley.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] (1) The present invention avoids the fogging or frosting of the infrared camera and visible light camera used for detection during substation monitoring, enabling the invention to operate stably in harsh environments, thereby better improving the monitoring effect of substation equipment; at the same time, it can discharge the heat generated when the electrical components in the base cavity work, thus avoiding the accumulation of heat in the base cavity and the inability to discharge it better, which may accelerate the aging or failure of the electrical components in the base cavity, and further improving the stability of the mobile monitoring equipment for extra-high voltage substations with an alarm function.

[0019] (2) The present invention avoids the fogging or frosting of the glass sealing cover by setting a heating cavity, electric heating wire and fan, ensuring that the mobile monitoring equipment for extra-high voltage substations with an alarm function can operate stably in harsh environments, thereby better improving the monitoring effect of substation equipment. At the same time, by discharging the hot air from the exhaust port, which is set at the bottom of the inspection trolley, it can heat the ground of the substation, thus avoiding snow accumulation or icing in the substation and further improving the stability of the equipment operation in the substation.

[0020] (3) The present invention can filter the air entering the heating cavity by setting a filter cotton board, thus avoiding dust and other substances in the outside air from entering the base cavity and polluting the electrical components in the base cavity, and further improving the stability of the mobile monitoring equipment for extra-high voltage substations with an alarm function.

[0021] (4) Through the cooperation between the baffle and the driving mechanism, the present invention can discharge the heat generated when the electrical components in the base cavity work, thus avoiding the accumulation of heat in the base cavity and the inability to discharge it better, which may accelerate the aging or failure of the electrical components in the base cavity, and further improving the stability of the mobile monitoring equipment for extra-high voltage substations with an alarm function. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the mobile monitoring equipment for extra-high voltage substations with an alarm function in Embodiment 1;

[0023] Figure 2 It is Figure 1 A cross-sectional view of the mobile monitoring equipment for extra-high voltage substations with an alarm function in

[0024] Figure 3 It is Figure 1 A half cross-sectional view of the protective housing in

[0025] Figure 4 It is Figure 2 A schematic structural diagram of the baffle in

[0026] Figure 5 is Figure 2 Schematic diagram of the structure of the middle bottom plate;

[0027] Figure 6 is Figure 2 Half-sectional view of the base in;

[0028] Figure 7 Schematic diagram of the principle of use of the mobile monitoring device for UHV substations with an alarm function in Embodiment 1;

[0029] Figure 8 Schematic diagram of the principle of use of the mobile monitoring device for UHV substations with an alarm function in Embodiment 1;

[0030] Figure 9 Schematic diagram of the control system of the mobile monitoring device for UHV substations with an alarm function in Embodiment 2;

[0031] The reference numerals in the figure are: 100, inspection trolley, 110, protection housing, 120, observation port, 130, glass sealing cover, 140, battery replacement port, 150, sealing door, 160, outer cover, 210, base, 220, base cavity, 230, inner housing, 240, outer housing, 250, connection channel, 260, mounting bracket, 270, intake channel, 280, exhaust channel, 290, exhaust port, 2100, heating cavity, 2110, electric heating wire, 2120, intake hole, 2130, fan, 2140, filter cotton installation cavity, 2150, filter cotton board, 2160, bottom plate, 2170, transition cavity, 2180, cavity intake port, 2190, baffle, 2200, first opening of the baffle, 2210, second opening of the baffle, 2220, strip-shaped through hole, 2230, vertical plate, 510, first strip-shaped plate, 520, lead screw, 530, lead screw slide, 540, reduction box, 550, motor, 560, second strip-shaped plate, 570, strip-shaped plate intake port, 610, partition, 620, equipment installation cavity, 630, battery installation cavity. Detailed implementation manners

[0032] Embodiment 1

[0033] Such as Figure 1 Figure 2 Figure 3As shown in the figure, this embodiment provides a mobile monitoring device for a UHV substation with an alarm function, which includes an inspection trolley 100. The inspection trolley 100 includes a base 210, and a base cavity 220 is provided in the base 210; the inspection trolley 100 further includes a protective housing 110 arranged at the base 210. The protective housing 110 includes an inner housing 230 covering the base cavity 220 and an outer housing 240 arranged outside the inner housing 230. A connection channel 250 is formed between the inner housing 230 and the outer housing 240; observation ports 120 are provided on both the outer housing 240 and the inner housing 230, and glass sealing covers 130 are provided at the observation ports 120; an installation bracket 260 is provided in the inner housing 230, and an infrared camera and a visible light camera facing the glass sealing cover 130 are provided at the installation bracket 260; an air intake channel 270 and an exhaust channel 280 communicating with both ends of the connection channel 250 are further provided in the base 210, and an exhaust port 290 communicating with the exhaust channel 280 is provided at the base 210; an air intake mechanism for heating the outside air and sending it into the air intake channel 270 is further provided in the base 210. Among them, the air intake mechanism includes a heating cavity 2100 communicating with the air intake channel 270. An electric heating wire 2110 is provided in the heating cavity 2100. An air intake hole 2120 communicating with the heating cavity 2100 is provided on the side wall of the base 210. A blower 2130 covering the air intake hole 2120 and used for sending the outside air into the heating cavity 2100 is provided at the base 210. An outer cover 160 covering the blower 2130 is provided on the outer side wall of the inspection trolley 100.

[0034] During use, the inspection trolley 100 is placed and moved in the substation, and the equipment in the substation is monitored by the infrared camera and the visible light camera. When encountering bad weather, such as ice and snow weather, the blower 2130 and the electric heating wire 2110 are started, so that the outside air enters from the air intake hole 2120 and is heated by the electric heating wire 2110 in the heating cavity 2100. The heated air is discharged from the exhaust port 290 through the air intake channel 270, the connection channel 250 and the exhaust channel 280. The specific working principle is as Figure 7 shown. When the hot air passes through the connection channel 250, the glass sealing covers 130 on the outer housing 240 and the inner housing 230 are heated, thereby preventing the glass sealing covers 130 from fogging or frosting, thus ensuring that the mobile monitoring device for the UHV substation with an alarm function can operate stably in a harsh environment, and thus preferably improving the monitoring effect of the substation equipment. At the same time, by discharging the hot air from the exhaust port 290, and the exhaust port 290 is arranged at the bottom of the inspection trolley 100, the ground of the substation can be heated, thereby preventing snow or ice from occurring in the substation and further improving the stability of the equipment operation in the substation.

[0035] In this embodiment, the mobile monitoring device for UHV substations with an alarm function can heat the glass sealing covers 130 at the infrared cameras and visible light cameras through the settings of the electric heating wires 2110, the air intake channels 270, the connection channels 250, and the exhaust channels 280, thereby avoiding the phenomenon of fogging or frosting on the glass sealing covers 130, enabling the mobile monitoring device for UHV substations with an alarm function to operate stably in bad weather, and thus better improving the monitoring effect of the equipment in the substation.

[0036] A filter cotton installation cavity 2140 is provided in the base 210 between the air intake holes 2120 and the heating cavity 2100. The filter cotton installation cavity 2140 communicates with the heating cavity 2100, and a filter cotton plate 2150 is provided in the filter cotton installation cavity 2140.

[0037] Through the setting of the filter cotton plate 2150, the air entering the heating cavity 2100 can be filtered, thereby preventing dust and the like in the outside air from entering the base cavity 220 and polluting the electrical components in the base cavity 220, and thus better improving the stability of the mobile monitoring device for UHV substations with an alarm function.

[0038] Combined Figure 4 、 Figure 5As shown in the figure, the base 210 of the base 210 is further provided with a bottom plate 2160. A transition cavity 2170 communicating with the heating cavity 2100 and the air inlet passage 270 is formed between the bottom plate 2160 and the bottom end surface of the base cavity 220. A cavity air inlet 2180 is provided at the bottom end surface of the base cavity 220. A baffle 2190 capable of blocking the cavity air inlet 2180 and the air inlet passage 270 is slidably provided in the base 210. The baffle 2190 is provided with a first baffle opening 2200 located at the cavity air inlet 2180 and a second baffle opening 2210 located at the air inlet passage 270. A driving mechanism for driving the baffle 2190 to slide to block one of the cavity air inlet 2180 and the air inlet passage 270 is provided in the transition cavity 2170. A strip-shaped through hole 2220 for discharging the air in the base cavity 220 is provided at the upper end of the inner housing 230. A vertical plate 2230 located in the exhaust passage 280 is provided at the baffle 2190. The vertical plate 2230 can move along with the baffle 2190 and can block the strip-shaped through hole 2220 when the baffle 2190 blocks the cavity air inlet 2180. The driving mechanism includes a set of first strip-shaped plates 510 provided at the bottom plate 2160. A lead screw 520 is rotatably provided at the first strip-shaped plate 510. A strip-shaped plate air inlet 570 is further provided at the first strip-shaped plate 510. The driving mechanism further includes a second strip-shaped plate 560 provided at the bottom plate 2160 and used for sealing the side end opening of the transition cavity 2170. A lead screw slide 530 connected to the baffle 2190 is provided at the lead screw 520. A speed reducer 540 is provided at the side wall of the base 210. The output shaft of the speed reducer 540 is connected to the lead screw 520. A motor 550 is connected to the input shaft of the speed reducer 540.

[0039] In hot seasons such as summer, the electrical components in the base cavity 220 are prone to generate a large amount of heat during long-term operation. The heat accumulates in the base cavity 220 and cannot be discharged well, which easily accelerates the aging or failure of the electrical components in the base cavity 220. Through the driving mechanism, the first baffle opening 2200 at the baffle 2190 is moved to the cavity air inlet 2180; the second baffle opening 2210 at the baffle 2190 is moved to be misaligned with the air inlet passage 270 to block the air inlet passage 270. At this time, the vertical plate 2230 moves away from blocking the strip-shaped through hole 2220. Start the fan 2130 and do not start the electric heating wire 2110, so that the outside air enters the base cavity 220 in turn through the air inlet hole 2120, the heating cavity 2100, the transition cavity 2170, the first baffle opening 2200 and the cavity air inlet 2180, and is discharged from the exhaust port 290 through the strip-shaped through hole 2220 and the exhaust passage 280. The specific working principle is as Figure 8 shown, so as to discharge the heat generated by the electrical components in the base cavity 220 during operation.

[0040] Among them, the setting of the first strip plate 510 not only provides an installation structure for the lead screw 520, but also can jointly form the installation of the baffle 2190 with the bottom end surface of the base 210; the setting of the second strip plate 560 not only provides an installation structure for the lead screw 520, but also can jointly form the installation of the baffle 2190 with the bottom end surface of the base 210, and can also seal the side end opening of the transition cavity 2170, so that external air can enter the base cavity 220.

[0041] In this embodiment, through the cooperation between the baffle 2190 and the driving mechanism, the heat generated when the electrical components in the base cavity 220 work can be discharged, thereby avoiding the accumulation of heat in the base cavity 220 and being unable to be discharged better, which speeds up the aging or failure of the electrical components in the base cavity 220, and further improves the stability of the mobile monitoring device for ultra-high voltage substations with an alarm function.

[0042] Combined Figure 6 As shown, a partition 610 is provided in the base cavity 220. The partition 610 divides the base cavity 220 into an equipment installation cavity 620 and a battery installation cavity 630. The number of cavity air inlets 2180 is two and they are respectively arranged at the bottom wall of the equipment installation cavity 620 and the bottom wall of the battery installation cavity 630. A power exchange port 140 communicating with the battery installation cavity 630 is provided on the side wall of the inspection trolley 100, and a sealing door 150 is provided at the power exchange port 140.

[0043] Through the setting of the partition 610, the base cavity 220 can be divided into an equipment installation cavity 620 and a battery installation cavity 630, which facilitates the installation of the battery and electrical components. Through the setting of the sealing door 150, it is convenient for the staff to replace the battery.

[0044] Embodiment 2

[0045] The parts not mentioned in this embodiment are the same as those in Embodiment 1.

[0046] As Figure 9 shown, in this embodiment, a control system for a mobile monitoring device for ultra-high voltage substations with an alarm function is provided, which includes a control module, a communication module, and an alarm module. The control module is used to receive the data of the infrared camera and the visible light camera and process the data, and send the processed data to the mobile terminal through the communication module. When the control module detects data anomalies, it sends an alarm message through the alarm module; the control module is also used to control the start and stop of the fan 2130 and the electric heating wire 2110; the control system also includes a power module, and the power module includes a battery. The power module is used to supply power to the infrared camera, the visible light camera, the fan 2130, the electric heating wire 2110, the control module, the communication module, and the alarm module.

[0047] In summary, the above are only the preferred embodiments of the present invention. All equivalent changes and modifications made within the scope of the patent application of the present invention shall fall within the scope of the patent of the present invention.

[0048] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A mobile monitoring device for UHV substations suitable for harsh environments, characterized by: The inspection vehicle (100) comprises a base (210), wherein the base (210) is provided with a base cavity (220); the inspection vehicle (100) further comprises a protective shell (110) arranged at the base (210), wherein the protective shell (110) comprises an inner shell (230) covering the base cavity (220) and an outer shell (240) arranged outside the inner shell (230), wherein a connecting passage (250) is formed between the inner shell (230) and the outer shell (240); and observation ports (120) are provided at both the outer shell (240) and the inner shell (230). A glass sealing cover (130) is provided at the observation port (120); a mounting bracket (260) is provided in the inner shell (230); an infrared camera and a visible light camera facing the glass sealing cover (130) are provided at the mounting bracket (260); an air intake channel (270) and an air exhaust channel (280) connected to both ends of the connecting channel (250) are also provided in the base (210); an air outlet (290) connected to the air exhaust channel (280) is provided at the base (210); an air intake mechanism for heating external air and sending the air into the air intake channel (270) is also provided in the base (210); The exhaust port (290) is arranged at the bottom of the base (210); A cavity air inlet (2180) is provided at the bottom end surface of the base cavity (220); a baffle (2190) capable of blocking the cavity air inlet (2180) and the air inlet channel (270) is provided in the base (210); a first baffle opening (2200) located at the cavity air inlet (2180) and a second baffle opening (2210) located at the air inlet channel (270) are provided on the baffle (2190); and a horizontal distance between the first baffle opening (2200) and the second baffle opening (2210) is less than At the horizontal distance between the cavity air inlet (2180) and the air inlet channel (270), the remaining baffle length on the right side of the second opening (2210) of the baffle is greater than the width of the air inlet channel (270), the upper end of the inner shell (230) is provided with a strip through hole (2220) for discharging air in the base cavity (220), and the baffle (2190) is provided with a vertical plate (2230) located in the exhaust channel (280), and the length of the vertical plate (2230) is greater than the vertical distance between the strip through hole (2220) and the baffle (2190).

2. The mobile monitoring device for ultra-high voltage substations suitable for harsh environments according to claim 1 is characterized in that: The air intake mechanism comprises a heating chamber (2100) in communication with an air intake channel (270), an electric heating wire (2110) being provided in the heating chamber (2100), air intake holes (2120) in communication with the heating chamber (2100) being provided at the side wall of the base (210), a fan (2130) covering all the air intake holes (2120) being provided at the base (210), and the fan (2130) being used to send outside air into the heating chamber (2100).

3. The mobile monitoring device for ultra-high voltage substations suitable for harsh environments according to claim 1 or 2, characterized in that: The base (210) is provided with a filter cotton installation cavity (2140) located between the air inlet hole (2120) and the heating cavity (2100); the filter cotton installation cavity (2140) is communicated with the heating cavity (2100); and a filter cotton plate (2150) is provided in the filter cotton installation cavity (2140).

4. The mobile monitoring device for UHV substations suitable for harsh environments according to claim 1 is characterized in that: The base (210) is further provided with a bottom plate (2160), and a transition chamber (2170) communicating with the heating chamber (2100) and the air inlet channel (270) is formed between the bottom plate (2160) and the bottom end surface of the base cavity (220), and a driving mechanism for driving the baffle plate (2190) to slide so as to block one of the cavity air inlet (2180) and the air inlet channel (270) is provided in the transition chamber (2170); the vertical plate (2230) is capable of moving with the baffle plate (2190) and is capable of blocking the strip-shaped through hole (2220) when the baffle plate (2190) blocks the cavity air inlet (2180).

5. The mobile monitoring device for UHV substations suitable for harsh environments according to claim 4, characterized in that: The driving mechanism comprises a group of first strip plates (510) arranged at the bottom plate (2160), a screw rod (520) being rotatably arranged at the first strip plates (510), and a strip plate air inlet (570) being also arranged at the first strip plates (510); the driving mechanism also comprises a second strip plate (560) being arranged at the bottom plate (2160) and used for sealing the side end opening of the transition chamber (2170); a screw rod slide (530) connected to the baffle (2190) is arranged at the screw rod (520), a reduction box (540) is arranged at the side wall of the base (210), an output shaft of the reduction box (540) is connected to the screw rod (520), and a motor (550) is connected to the input shaft of the reduction box (540).

6. The mobile monitoring device for UHV substations suitable for harsh environments according to claim 1, characterized in that: A partition (610) is provided in the base cavity (220), the partition (610) dividing the base cavity (220) into a device installation cavity (620) and a battery installation cavity (630), and the number of cavity air inlets (2180) is two and they are respectively provided at the bottom wall of the device installation cavity (620) and the bottom wall of the battery installation cavity (630).

7. The mobile monitoring device for UHV substations suitable for harsh environments according to claim 1, characterized in that: A battery replacement port (140) communicating with the battery installation cavity (630) is provided on the side wall of the inspection vehicle (100), and a sealing door (150) is provided at the battery replacement port (140).

8. The mobile monitoring device for UHV substations suitable for harsh environments according to claim 1, characterized in that: An outer cover (160) covering the fan (2130) is provided on the outer side wall of the inspection vehicle (100).

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