CN111929471A - A high-temperature-proof distribution network overvoltage monitor for outdoor use - Google Patents

Abstract

The invention discloses an outdoor high-temperature-proof distribution network overvoltage monitor. Including a voltage fault monitor, including a voltage fault monitor, a sealing end cover is installed on the top surface of the voltage fault monitor, a sealing end sleeve is embedded in the outer side of the voltage fault monitor, and the voltage fault monitor is installed. The cooling liquid pipe is installed between both sides of the outer wall and the sealing end sleeve, and the liquid storage chamber is opened inside the cooling liquid pipe at a position corresponding to the cooling liquid pipe, and the liquid storage chamber is The aluminum fins are installed on the outer side, and the invention circulates the cooling liquid inside the liquid storage chamber at the cooling liquid pipe, so as to take out the heat generated inside the voltage fault monitor, and pass it through the heat conduction pad. The layer and aluminum fins dissipate the heat, which effectively improves the heat dissipation performance inside the voltage fault monitor, and solves the problem that the device is easily damaged in a high temperature environment for a long time.

Description

A high-temperature-proof distribution network overvoltage monitor for outdoor use

technical field

The invention relates to the technical field of power equipment fault monitoring devices, in particular to an outdoor high-temperature-proof distribution network overvoltage monitor.

Background technique

The neutral point is not grounded, and the power system is grounded by the arc suppression coil or high resistance grounding. Most of the domestic power grids of 66kV and below use this grounding method. The full voltage monitoring and wave recording device is our company's target for various types of power systems An intelligent integrated controller developed for faults. The device can be installed on all levels of busbars in 3-35kV substations. It can quickly and accurately identify the secondary signals of voltage transformers and current transformers by sampling and analyzing them. Various fault states of the power grid are issued, and corresponding control, alarm and blocking commands are issued. It is used to identify and control the common faults in the power grid, such as voltage limit, PT disconnection, single-phase grounding, ferromagnetic resonance, lightning strike or operating overvoltage, system harmonics, etc., which are easy to cause tripping accidents. , and can monitor the phase voltage and line voltage of the normal operation of the system in real time.

However, when the existing full-voltage fault monitoring equipment is used, the device is exposed to a high temperature environment for a long time, which is easy to cause fault damage to the equipment and fail to realize the protection of the equipment in the event of a voltage fault, resulting in the problem of large losses when the equipment fails.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an outdoor high-temperature-proof distribution network overvoltage monitor, so as to solve the problem that the existing full-voltage fault monitoring equipment proposed in the above-mentioned background technology exists in a high-temperature environment for a long time during use. It is easy to cause equipment failure and damage and can not realize the protection of the equipment when the voltage fails, resulting in the problem of large losses when the equipment fails.

In order to achieve the above purpose, the present invention provides the following technical solutions: an outdoor overvoltage monitor for anti-high temperature distribution network, including a voltage fault monitor, including a voltage fault monitor, the top surface side of the voltage fault monitor A sealed end cap is installed, and a cooling mechanism is embedded and installed on the external side of the voltage fault monitor. A stainless steel filter screen, a sealing end sleeve is embedded and installed on the outer side of the voltage fault monitor, and the cooling liquid pipe is installed between both sides of the outer wall of the voltage fault monitor and the sealing end sleeve. The micro-circulating pump is sleeved and installed on the outside of the pipe, the liquid storage chamber is opened inside the cooling liquid pipe at a position corresponding to the cooling liquid pipe, and the aluminum storage chamber is installed on one side outside the liquid storage chamber. A fin is made, and the thermally conductive pad is attached and installed at the connection between the inner wall of the aluminum fin and the liquid storage chamber.

Further, the blower is embedded and installed on the other side of the outside of the voltage fault monitor, and the stainless steel filter screen is embedded and installed on one side of the outside of the blower, and the top surface of the outside of the voltage fault monitor is embedded and installed with PLC control. The signal input end of the blower and the micro-circulation pump are all electrically connected with the signal output end of the PLC controller.

Further, a fault protection mechanism is embedded and installed at the inner top of the voltage fault monitor corresponding to the position of the sealing end cover. The coil, the sparse coil, the insulating gasket, the driven sprocket, the guide plate and the drive sprocket, the guide plate is embedded and installed at the top of the voltage fault monitor corresponding to the position of the sealing end cover, and the guide plate is installed. The lift plate is embedded in the middle of the top of the flow plate, the telescopic insulating columns are installed on both sides of the bottom end of the lift plate, and the support spring is sleeved and installed on the outside of the lift plate corresponding to the top of the guide plate. The dial is installed on the top of the lift plate.

Further, the dense coil is sleeved and installed on one side of the inside of the guide plate, the sparse coil is sleeved and installed on one side of the dense coil, and the insulating gasket is sleeved and installed on one side of the sparse coil. .

Further, the driven sprocket is sleeved and installed in the middle of the inside of the guide plate, the guide plate is fixedly installed at the bottom end of the driven sprocket, and the outer side of the driven sprocket is meshed and connected. the drive sprocket.

Further, the outer two sides of the lift plate and the top of the voltage fault monitor are connected in rotation by a fixed support plate, and a fixed shaft is installed through the fixed support plate and the sealing end cover, and the fixed support plate is installed. A fastening screw ring is sleeved and installed on the outside of the shaft, an acrylic transparent plate is embedded in one side of the outer wall of the sealing end cover, and a sealing gasket is sleeved at the bottom end of the sealing end cover.

Further, glycol-type cooling liquid is stored in the liquid storage chamber, and the material of the thermally conductive pad layer is a thermally conductive silicone sheet material.

Further, a wire harness mechanism is embedded and installed at the tops of the outer two sides of the voltage fault monitor corresponding to the position of the guide plate, and the wire harness mechanism includes a wire harness ring, a rubber backing plate, a wire harness groove and a compression spring, The wire harness rings are embedded and installed at the tops on both sides of the outside of the voltage fault monitor corresponding to the position of the guide plate, and the rubber backing plates are installed on both sides of the interior of the wire harness rings. The wire harness groove is opened between the backing plates, and the bottom end of the rubber backing plate and the inner wall of the wire harness ring are fixedly connected by the compression spring.

Further, screw holes are formed through both sides of the outside of the voltage fault monitor, and the outer wall surface of the voltage fault monitor is coated with an anti-rust coating.

Further, a liquid injection port is embedded and installed on one side of the outer wall of the sealing end sleeve, and a sealing rubber plug is embedded and installed in the liquid injection port through threads.

Compared with the prior art, the beneficial effects of the present invention are:

The invention is provided with a cooling mechanism, and the cooling liquid inside the liquid storage chamber is circulated at the cooling liquid pipe through a micro-circulating pump, and the heat generated inside the voltage fault monitor is taken out, and the heat generated inside the voltage fault monitor is carried out through the thermal pad and aluminum. The fins dissipate heat, and at the same time, the blower and stainless steel filter promote the air flow inside the voltage fault monitor, which effectively improves the heat dissipation performance inside the voltage fault monitor, and solves the problem that the device is exposed to a high temperature environment for a long time, which is easy to cause The problem of equipment failure and damage.

By setting a fault protection mechanism, by controlling the driving sprocket and the driven sprocket to move the guide plate to the positions of the dense coil, the sparse coil and the insulating gasket respectively, through the access to different energized coils, it can be used according to the actual use. According to the demand, the output voltage of the device can be adjusted, and by connecting the insulating gasket, the power-off protection of the whole equipment can be realized, the protection of the equipment in the event of voltage failure is realized, and the loss in the event of equipment failure can be effectively reduced.

The bottom end of the rubber backing plate is supported by a compression spring, and the power line inside the voltage fault monitor is clamped and fixed through the wire harness groove at the rubber backing plate, thereby improving the voltage of the power line. The firmness of the internal installation of the fault monitor ensures the orderly and aesthetics of the internal power cables of the voltage fault monitor at the harness ring.

Description of drawings

1 is a schematic structural diagram of an embodiment of the present invention;

Fig. 2 is the structural representation of the cooling mechanism in the embodiment of Fig. 1;

3 is a schematic structural diagram of the mechanism for installing the lift plate in the embodiment of FIG. 1;

4 is a schematic structural diagram of a mechanism for installing a guide vane in the embodiment of FIG. 1;

FIG. 5 is a schematic structural diagram of the harness mechanism in the embodiment of FIG. 1 .

Reference numerals: 1. Voltage fault monitor; 2. Sealing end cap; 3. Cooling mechanism; 301, Cooling liquid pipe; 302, Blower; 303, Liquid storage chamber; 304, Micro circulation pump; ;306, aluminum fin; 307, stainless steel filter; 4, fault protection mechanism; 401, lifting plate; 402, telescopic insulating column; 403, support spring; 404, guide plate; 405, dial plate; 406, dense Coil; 407, dredging coil; 408, insulating gasket; 409, driven sprocket; 410, guide plate; 411, driving sprocket; 5, PLC controller; 6, fixed support plate; 7, harness mechanism; 701, wire harness ring; 702, rubber backing plate; 703, wire harness groove; 704, compression spring; 8, sealing end sleeve.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Figures 1 to 5 together, wherein an outdoor overvoltage monitor for high temperature protection of distribution network includes a voltage fault monitor 1, including a voltage fault monitor 1, and a top surface of the voltage fault monitor 1 is a A sealed end cap 2 is installed on the side, and a cooling mechanism 3 is embedded and installed on the external side of the voltage fault monitor 1. The cooling mechanism 3 includes a cooling liquid pipe 301, a blower 302, a liquid storage chamber 303, a micro-circulating pump 304, and a thermal pad 305. , aluminum fins 306 and stainless steel filter screen 307, a sealing end sleeve 8 is embedded in the outer side of the voltage fault monitor 1, and a coolant pipe 301 is installed between both sides of the outer wall of the voltage fault monitor 1 and the sealing end sleeve 8 , a micro-circulating pump 304 is installed outside the cooling liquid pipe 301, a liquid storage chamber 303 is opened inside the cooling liquid pipe 301 at the position corresponding to the cooling liquid pipe 301, and an aluminum fin is installed on the outer side of the liquid storage chamber 303 306 , a thermal pad layer 305 is attached and installed at the connection between the inner wall of the aluminum fin 306 and the liquid storage chamber 303 .

A blower 302 is embedded in the other side of the outside of the voltage fault monitor 1, and a stainless steel filter screen 307 is embedded in one side of the outside of the blower 302. The top surface of the voltage fault monitor 1 is embedded with a PLC controller 5, a blower 302 and a micro-circulator. The signal input end of the pump 304 is electrically connected to the signal output end of the PLC controller 5, and the start and stop of the blower 302 and the micro circulation pump 304 can be controlled by the PLC controller 5, which ensures the stable performance of the device during operation.

A fault protection mechanism 4 is embedded in the top of the voltage fault monitor 1 corresponding to the position of the sealing end cover 2. The fault protection mechanism 4 includes a lifting plate 401, a telescopic insulating column 402, a supporting spring 403, a guide plate 404, a dial plate 405, a The coil 406, the sparse coil 407, the insulating gasket 408, the driven sprocket 409, the guide plate 410 and the drive sprocket 411, the internal top of the voltage fault monitor 1 corresponds to the position of the sealing end cover 2. The guide plate 404 is embedded and installed. A lift plate 401 is embedded in the middle of the top of the deflector plate 404 , and telescopic insulating columns 402 are installed on both sides of the bottom end of the lift plate 401 . A dial 405 is installed.

A dense coil 406 is sleeved and installed on one side of the guide plate 404, a sparse coil 407 is sleeved and installed on one side of the dense coil 406, an insulating gasket 408 is sleeved and installed on one side of the sparse coil 407, and the middle part of the guide plate 404 is sleeved. A driven sprocket 409 is installed, the bottom end of the driven sprocket 409 is fixedly installed with a guide vane 410, and the outer side of the driven sprocket 409 is meshed with a drive sprocket 411. By controlling the drive sprocket 411 and the driven sprocket 409 When the deflector 410 is moved to the positions of the dense coil 406, the sparse coil 407 and the insulating gasket 408 respectively, by connecting different energized coils, the output voltage of the device can be adjusted according to the actual use requirements, and by The connection of the insulating gasket 408 can realize the power-off protection of the whole equipment, realize the protection of the equipment when the voltage fails, and effectively reduce the loss when the equipment fails.

The outer two sides of the lift plate 401 and the top of the voltage fault monitor 1 are connected by rotation through the fixed support plate 6, and a fixed shaft is installed through the fixed support plate 6 and the sealing end cover 2, and the external of the fixed shaft is sleeved and installed with a fastening screw. The outer wall of the sealing end cover 2 is embedded with an acrylic transparent plate, and the bottom end of the sealing end cover 2 is sleeved with a sealing gasket. The staff manually rotates the sealing end cover 2 at the position of the fixed support plate 6, When the dial plate 405 connects the telescopic insulating column 402 at the bottom end of the lifting plate 401 to different positions inside the guide plate 404, the manual adjustment of the internal voltage of the voltage fault monitor 1 can be realized, which effectively improves the voltage equipment in the Convenient performance for later inspection and maintenance.

In order to ensure the anti-corrosion and anti-freezing performance of the cooling liquid in the liquid storage chamber 303 and effectively prolong the actual service life of the liquid storage chamber 303, the liquid storage chamber 303 stores the ethylene glycol type cooling liquid inside the liquid storage chamber 303. The material is thermally conductive silicone sheet material.

A wire harness mechanism 7 is embedded and installed at the positions of the top sides of the external top of the voltage fault monitor 1 corresponding to the guide plate 404. The wire harness mechanism 7 includes a wire harness ring 701, a rubber backing plate 702, a wire harness groove 703 and a compression spring 704. The voltage A wire harness ring 701 is embedded and installed at the positions of the tops on both sides of the exterior of the fault monitor 1 corresponding to the guide plate 404 , a rubber backing plate 702 is installed on both sides of the wire harness ring 701 , and a wiring harness is opened between the two rubber backing plates 702 The wire groove 703, the bottom end of the rubber backing plate 702 and the inner wall of the wire harness ring 701 are fixedly connected by a compression spring 704, the bottom end of the rubber backing plate 702 is supported by the compression spring 704, and passes through the wire harness groove at the rubber backing plate 702 703 clamps and fixes the power cord inside the voltage fault monitor 1, thereby improving the firmness of the power cord installed inside the voltage fault monitor 1, and ensuring that the internal power wire of the voltage fault monitor 1 is arranged at the harness ring 701. The orderliness and beauty of the cloth.

Both sides of the outside of the voltage fault monitor 1 are provided with screw holes, and the outer wall surface of the voltage fault monitor 1 is coated with an anti-rust coating. And the anti-corrosion performance of the surface of the voltage fault monitor 1 can be improved by the anti-rust coating.

A liquid injection port is embedded and installed on one side of the outer wall of the sealing end sleeve 8, and a sealing rubber plug is embedded and installed in the liquid injection port through threads. It is beneficial to ensure that the cooling mechanism 3 cools down the internal equipment of the voltage fault monitor 1, and avoids the failure and damage of the device caused by the voltage fault monitor 1 being in a high temperature environment for a long time.

In summary, the present invention provides an outdoor high-temperature-proof distribution network overvoltage monitor. During operation, firstly, the cooling liquid in the liquid storage chamber 303 is transferred to the cooling liquid pipe 301 by the micro-circulating pump 304 Circulating flow is carried out, the heat generated inside the voltage fault monitor 1 is taken out, and the heat is discharged through the thermal pad 305 and the aluminum fins 306, while the blower 302 and the stainless steel filter 307 promote the voltage fault monitor 1. The internal air flows, thereby effectively improving the heat dissipation performance inside the voltage fault monitor 1, and solving the problem that the device is in a high temperature environment for a long time, which is easy to cause equipment failure and damage;

Then, by controlling the driving sprocket 411 and the driven sprocket 409 to move the guide plate 410 to the positions of the dense coil 406, the sparse coil 407 and the insulating gasket 408, respectively, through the access to different energized coils, it can be adjusted according to the actual situation. According to the usage requirements, the output voltage of the device is adjusted, and through the access of the insulating gasket 408, the power-off protection of the equipment as a whole can be realized, the protection of the equipment in the event of voltage failure is realized, and the loss in the event of equipment failure is effectively reduced. ;

Next, when the telescopic insulating column 402 at the bottom end of the lifting plate 401 is connected to different positions inside the deflector plate 404 by turning the dial 405, the manual adjustment of the internal voltage of the voltage fault monitor 1 can be realized, effectively Improve the convenience of voltage equipment in the later inspection and maintenance;

Finally, the bottom end of the rubber backing plate 702 is supported by the compression spring 704, and the power cable inside the voltage fault monitor 1 is clamped and fixed by the wire harness groove 703 at the rubber backing plate 702, thereby improving the voltage of the power cable. The firmness of the internal installation of the fault monitor 1 ensures the orderly and aesthetically pleasing arrangement of the internal power cables of the voltage fault monitor 1 at the wire harness ring 701 .

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. An outdoor high-temperature-proof distribution network overvoltage monitor, comprising a voltage fault monitor (1), characterized in that, comprising a voltage fault monitor (1), the top of the voltage fault monitor (1) A sealing end cover (2) is installed on the surface side, and a cooling mechanism (3) is embedded and installed on the outer side of the voltage fault monitor (1), and the cooling mechanism (3) includes a cooling liquid pipe (301), a blower ( 302), liquid storage chamber (303), micro circulation pump (304), thermally conductive pad (305), aluminum fins (306) and stainless steel screen (307), external to the voltage fault monitor (1) A sealed end sleeve (8) is embedded and installed on one side, and the cooling liquid pipe (301) is installed between both sides of the outer wall of the voltage fault monitor (1) and the sealed end sleeve (8). The micro-circulation pump (304) is sleeved and installed on the outside of the liquid pipe (301), and the liquid storage chamber (303) is opened inside the cooling liquid pipe (301) at a position corresponding to the cooling liquid pipe (301). ), the aluminum fins (306) are installed on the outer side of the liquid storage chamber (303), and the connection between the inner wall of the aluminum fins (306) and the liquid storage chamber (303) The thermally conductive pad layer (305) is attached and mounted. 2 . The overvoltage monitor for outdoor high temperature protection distribution network according to claim 1 , wherein the blower (302) is embedded and installed on the other side of the outside of the voltage fault monitor (1). 3 . ), and the stainless steel filter screen (307) is embedded and installed on the outer side of the blower (302), the PLC controller (5) is embedded and installed on the outer top surface of the voltage fault monitor (1), and the blower ( 302) and the signal input end of the micro circulation pump (304) are both electrically connected with the signal output end of the PLC controller (5). 3. An outdoor high-temperature-proof distribution network overvoltage monitor according to claim 1, characterized in that the inner top of the voltage fault monitor (1) corresponds to the position of the sealed end cover (2) A fault protection mechanism (4) is embedded and installed at the place, and the fault protection mechanism (4) includes a lifting plate (401), a telescopic insulating column (402), a support spring (403), a guide plate (404), a dial (405) ), dense coil (406), sparse coil (407), insulating gasket (408), driven sprocket (409), deflector (410) and drive sprocket (411), the voltage fault monitor ( 1) The guide plate (404) is embedded and installed at the position of the inner top corresponding to the sealing end cover (2), and the lift plate (401) is embedded and installed in the middle of the top of the guide plate (404). The telescopic insulating column (402) is installed on both sides of the bottom end of the lift plate (401), and the support spring (403) is sleeved and installed on the outside of the lift plate (401) corresponding to the top of the guide plate (404). and the dial plate (405) is installed on the top of the lift plate (401). 4. The high-temperature-proof distribution network overvoltage monitor for outdoor use according to claim 3, characterized in that the dense coil (406) is sleeved and installed on one side of the inside of the guide plate (404). ), the sparse coil (407) is sleeved and installed on one side of the dense coil (406), and the insulating gasket (408) is sleeved and installed on one side of the sparse coil (407). 5. An outdoor high-temperature-proof distribution network overvoltage monitor according to claim 4, characterized in that, the driven sprocket ( 409), the guide plate (410) is fixedly installed at the bottom end of the driven sprocket (409), and the driving sprocket (411) is engaged and connected to the outer side of the driven sprocket (409). 6. An outdoor high-temperature-proof distribution network overvoltage monitor according to claim 5, characterized in that the outer two sides of the lift plate (401) are connected to the top of the voltage fault monitor (1). They are connected in rotation by a fixed support plate (6), a fixed shaft is installed through the fixed support plate (6) and the sealing end cover (2), and a fastening screw ring is sleeved and installed on the outside of the fixed shaft. A transparent acrylic plate is embedded in one side of the outer wall of the sealing end cover (2), and a sealing gasket is sleeved at the bottom end of the sealing end cover (2). 7. The high-temperature-proof distribution network overvoltage monitor for outdoor use according to claim 1, wherein the liquid storage chamber (303) is internally stored with glycol-type cooling liquid, and the The material of the thermally conductive pad layer (305) is a thermally conductive silicone sheet material. 8. The overvoltage monitor for outdoor high-temperature-proof distribution network according to claim 4, characterized in that the tops on both sides of the outside of the voltage fault monitor (1) correspond to the diverter plate (404). ) positions are embedded and installed with a wire harnessing mechanism (7), the wire harnessing mechanism (7) comprising a wire harnessing ring (701), a rubber backing plate (702), a wire harnessing slot (703) and a compression spring (704), The wire harness rings (701) are embedded in the tops of the outer two sides of the voltage fault monitor (1) corresponding to the positions of the guide plates (404), and the wire harness rings (701) are installed on both sides inside. The rubber backing plate (702) is provided, the wire harness groove (703) is opened between the two rubber backing plates (702), and the bottom end of the rubber backing plate (702) is connected to the wire harness ring ( 701) The inner walls are fixedly connected by the compression spring (704). 9. A kind of outdoor anti-high temperature power distribution network overvoltage monitor according to claim 1, characterized in that, both external sides of the voltage fault monitor (1) are provided with screw holes, and the The outer wall surface of the voltage fault monitor (1) is coated with an anti-rust coating. 10. An outdoor high-temperature-proof distribution network overvoltage monitor according to claim 1, characterized in that a liquid injection port is embedded and installed on one side of the outer wall of the sealed end sleeve (8), and the The inside of the liquid injection port is fitted with a sealing plug through a thread.

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