CN116298702A - Full-voltage fault on-line monitoring equipment for power distribution network - Google Patents
Full-voltage fault on-line monitoring equipment for power distribution network Download PDFInfo
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- CN116298702A CN116298702A CN202310587942.3A CN202310587942A CN116298702A CN 116298702 A CN116298702 A CN 116298702A CN 202310587942 A CN202310587942 A CN 202310587942A CN 116298702 A CN116298702 A CN 116298702A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 12
- 238000012806 monitoring device Methods 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims description 26
- 239000002274 desiccant Substances 0.000 claims description 15
- 238000009423 ventilation Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 6
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- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/28—Selection of materials for use as drying agents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20336—Heat pipes, e.g. wicks or capillary pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thermal Sciences (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Gases (AREA)
Abstract
The embodiment of the application provides full-voltage fault on-line monitoring equipment for a power distribution network, and relates to the technical field of power equipment monitoring. The power distribution network full-voltage fault on-line monitoring device comprises a voltage detector and a cooling component; a cooling component is arranged in the box body; the semiconductor refrigerator is characterized in that a partition plate is fixed in the box body, the semiconductor refrigerating sheet is embedded on the surface of the partition plate, an air flow channel is formed between the partition plate and the bottom of the box body, and the refrigerating surface of the semiconductor refrigerating sheet is arranged in the air flow channel. According to the full-voltage fault on-line monitoring equipment for the power distribution network, one end of the heat pipe is fixedly attached to the refrigerating surface of the semiconductor refrigerating sheet, the other end of the heat pipe penetrates through the air outlet, one end of the heat pipe penetrating through the air outlet extends to the heat accumulation position inside the voltage detector, directional heat dissipation and cooling are carried out, cooling efficiency of branch pipes at the side with higher temperature can be improved, continuous high temperature of the internal temperature of the device is avoided, the internal environment is relieved, and the service life of components is prolonged.
Description
Technical Field
The application relates to the technical field of power equipment monitoring, in particular to full-voltage fault on-line monitoring equipment for a power distribution network.
Background
In the related technology, most of domestic power grids with the voltage of 66kV or below adopt a power system with neutral points not grounded and with arc suppression coils grounded or high-resistance grounded modes, so that the grounding mode is adopted;
at present, the full-voltage monitoring and wave recording device is an intelligent comprehensive controller which is developed for various faults in a power system at present, and can be arranged on each level bus of a 3-35 kV substation, and various fault states of a power grid are rapidly and accurately identified by sampling and analyzing secondary signals of a voltage transformer and a current transformer, and corresponding control, alarm and locking instructions are sent out. The method is used for identifying and controlling faults such as voltage out-of-limit, PT wire breakage, single-phase grounding, ferroresonance, lightning stroke or operation overvoltage, system harmonic and the like which are common to a power grid and are easy to cause tripping accidents, and simultaneously recording and analyzing fault waveforms, and monitoring phase voltage and line voltage of normal operation of the system in real time.
However, the existing full-voltage fault on-line monitoring equipment for the power distribution network cannot conduct directional heat dissipation and cooling on the heat accumulation position inside the voltage detector when in use, cooling efficiency of a branch pipe at the side with a higher temperature cannot be improved, the temperature inside the device is higher, and ageing of components is accelerated.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a full voltage trouble on-line monitoring equipment of distribution network can accelerate the cooling efficiency of higher side branch pipe department of temperature, has avoided the inside temperature of device to last high temperature, has alleviateed internal environment, prolongs the life of components and parts.
The power distribution network full-voltage fault on-line monitoring equipment comprises a voltage detector and a cooling component;
a box body is fixed on one side of the voltage detector, and a cooling component is arranged in the box body;
the cooling component comprises a semiconductor refrigerating sheet and a heat pipe, a partition plate is fixed in the box body, the semiconductor refrigerating sheet is embedded on the surface of the partition plate, an air flow channel is formed between the partition plate and the bottom of the box body, and the refrigerating surface of the semiconductor refrigerating sheet is arranged in the air flow channel;
an air inlet is formed in the bottom of the box body, the air inlet is communicated with the air flow channel, an air outlet is formed in one side of the air flow channel, the air outlet is communicated with the inside of the voltage detector, one end of the heat pipe is fixedly attached to the refrigerating surface of the semiconductor refrigerating sheet, and the other end of the heat pipe penetrates through the air outlet;
the novel voltage detector is characterized in that a drying box is arranged in the air flow channel, the drying box is arranged at the air outlet, the drying box is filled with a replaceable drying agent, ventilation openings are formed in two side faces of the drying box, and the inside of the voltage detector is communicated with the air flow channel through the ventilation openings.
According to the power distribution network full-voltage fault on-line monitoring equipment, one side of the voltage detector is fixed with the box body, the cooling component is installed in the box body, forced cooling treatment is carried out through the cooling component, and the problem that heat in the voltage detector cannot be diffused in an external high-temperature environment is avoided;
the cooling component is matched with the heat pipe through the semiconductor refrigerating sheet, a partition board is fixed in the box body, the semiconductor refrigerating sheet is embedded on the surface of the partition board and used for isolating heat exchange between the refrigerating surface and the heating surface of the semiconductor refrigerating sheet, and an air flow channel is formed between the partition board and the bottom of the box body, and the refrigerating surface of the semiconductor refrigerating sheet is arranged in the air flow channel, so that air flow passing through the air flow channel is cooled;
an air inlet formed in the bottom of the box body is communicated with an air flow channel, an air outlet formed in one side of the air flow channel is communicated with the inside of the voltage detector, after external air flow enters the air flow channel through the air inlet, the temperature of the air flow is reduced, and the reduced air flow enters the voltage detector through the air outlet and exchanges heat with heat generated by parts in the voltage detector, so that the temperature in the voltage detector is reduced;
one end of the heat pipe is fixedly attached to the refrigerating surface of the semiconductor refrigerating sheet, the other end of the heat pipe penetrates through the air outlet, one end of the heat pipe penetrating through the air outlet extends to the heat accumulation position in the voltage detector, directional heat dissipation and cooling are carried out, cooling efficiency at a branch pipe at the side with higher temperature can be improved, continuous high temperature of the internal temperature of the device is avoided, the internal environment is relieved, and the service life of components is prolonged;
the drying box that sets up in the air current passageway places in gas outlet department to the removable drier has been filled in the drying box, and the vent has all been seted up to drying box both sides face, and the inside and air current passageway of voltage detector pass through the vent intercommunication, can dry the air that gets into the air current passageway, avoid moist air current to get into the interior damage components and parts of voltage detector, simple structure, the suitability is strong.
In addition, the power distribution network full-voltage fault on-line monitoring device according to the embodiment of the application has the following additional technical characteristics:
in a preferred mode of the invention, the air inlet and the air outlet are respectively arranged at two sides of the refrigerating surface of the semiconductor refrigerating sheet, and the outer surface of the air inlet is covered with a dustproof screen plate.
In a preferred mode of the invention, the dustproof mesh plate is clamped and fixed with the box body, the heating surface of the semiconductor refrigeration sheet is attached with radiating fins, and the radiating fins are fixed at the upper end of the box body.
In a preferred mode of the invention, a heat-resistant plate is arranged between the box body and the voltage detector, the drying box is embedded at the bottom of the box body, a cover plate is covered at the opening of the lower end of the drying box, and the cover plate is clamped on the lower surface of the box body.
In a preferred mode of the invention, a temperature sensor is arranged in the voltage detector, a heat dissipation port is arranged at the top of the voltage detector, an exhaust fan is arranged at the heat dissipation port, and a one-way air inlet valve is arranged at the air inlet.
In a preferred mode of the invention, an electric connection slot is arranged on the front end face of the voltage detector, the rear end face of the voltage detector is fixedly connected with the box body, and a supporting pad is fixed on the lower surface of the voltage detector.
In a preferred mode of the invention, the box body and the voltage detector shell are integrally formed, a plurality of support pads are arranged, and the plurality of support pads are respectively arranged at corners of the voltage detector.
In a preferred mode of the invention, a clamping block is fixed at one end of the box body, a clamping groove is formed at one end of the voltage detector, and the clamping block is matched and clamped in the clamping groove.
In a preferred mode of the invention, the drying agent can be absorbent cotton or dry particles, the air flow channel is of a flat space structure, a plurality of baffles are fixed in the air flow channel, the baffles are arranged in a crossed manner, and the baffles are arranged between the air inlet and the air outlet;
the drying agent is suitable for preventing the components and parts such as instruments, meters, electrical equipment and the like from being wetted, and the drying agent is a substance capable of removing moisture in wet substances and is divided into two types: chemical drying agents such as calcium sulfate and calcium chloride, etc., are dried by combining with water to produce a hydrate; physical drying agents such as silica gel and activated alumina are dried by physically adsorbing water.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
Fig. 1 is a schematic structural diagram of an online monitoring device for full-voltage faults of a power distribution network according to an embodiment of the present application;
FIG. 2 is a schematic view of a box in a cut-away internal perspective view according to an embodiment of the present application;
FIG. 3 is a schematic side cut-away view of an embodiment of the present application;
FIG. 4 is a schematic diagram of a card slot structure according to an embodiment of the present application;
FIG. 5 is a schematic perspective view of a box and heat dissipating fins according to an embodiment of the present application;
FIG. 6 is a schematic top view of a cartridge according to an embodiment of the present application;
fig. 7 is a schematic view of a structure of a drying box according to an embodiment of the present application.
Icon: 100. a voltage detector; 101. an exhaust fan; 103. a clamping groove; 105. a support pad; 110. a case body; 111. a dust-proof screen; 112. a clamping block; 113. an air inlet; 115. an air outlet; 130. a partition plate; 150. an air flow channel; 151. a drying box; 153. a baffle; 170. a heat-blocking plate; 300. a cooling component; 310. a semiconductor refrigeration sheet; 330. a heat pipe; 311. and a heat radiating fin.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some of the embodiments of the present application, but not all of the embodiments. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without undue burden are within the scope of the present application.
Examples
The full-voltage fault on-line monitoring equipment for the power distribution network according to the embodiment of the application is described below with reference to the accompanying drawings;
as shown in fig. 1 to 7, an online monitoring device for full-voltage faults of a power distribution network according to an embodiment of the present application includes a voltage detector 100 and a cooling component 300;
a box body 110 is fixed at one side of the voltage detector 100, and a cooling component 300 is installed in the box body 110;
the cooling assembly 300 comprises a semiconductor cooling plate 310 and a heat pipe 330, wherein a partition plate 130 is fixed in the box body 110, the semiconductor cooling plate 310 is embedded on the surface of the partition plate 130, an air flow channel 150 is formed between the partition plate 130 and the bottom of the box body 110, and the cooling surface of the semiconductor cooling plate 310 is arranged in the air flow channel 150;
an air inlet 113 is formed in the bottom of the box body 110, the air inlet 113 is communicated with the air flow channel 150, an air outlet 115 is formed in one side of the air flow channel 150, the air outlet 115 is communicated with the inside of the voltage detector 100, one end of the heat pipe 330 is fixedly attached to the refrigerating surface of the semiconductor refrigerating sheet 310, and the other end of the heat pipe 330 penetrates through the air outlet 115;
the inside of the air flow channel 150 is provided with a drying box 151, the drying box 151 is arranged at the air outlet 115, the drying box 151 is filled with a replaceable drying agent, both sides of the drying box 151 are provided with ventilation openings, and the inside of the voltage detector 100 is communicated with the air flow channel 150 through the ventilation openings.
According to the power distribution network full-voltage fault on-line monitoring equipment disclosed by the embodiment of the application, the box body 110 is fixed on one side of the voltage detector 100, the cooling component 300 is installed in the box body 110, forced cooling treatment is carried out through the cooling component 300, and the problem that heat in the voltage detector 100 cannot be diffused in an external high-temperature environment is avoided;
the cooling assembly 300 is formed by matching the semiconductor refrigerating sheet 310 with the heat pipe 330, the partition plate 130 is fixed in the box body 110, the semiconductor refrigerating sheet 310 is embedded on the surface of the partition plate 130, and is used for isolating heat exchange between the refrigerating surface and the heating surface of the semiconductor refrigerating sheet 310, and the air flow channel 150 is formed between the partition plate 130 and the bottom of the box body 110, and the refrigerating surface of the semiconductor refrigerating sheet 310 is arranged in the air flow channel 150, so that air flow passing through the air flow channel 150 is cooled;
an air inlet 113 formed in the bottom of the box body 110 is communicated with an air flow channel 150, an air outlet 115 formed in one side of the air flow channel 150 is communicated with the interior of the voltage detector 100, after external air flow enters the air flow channel 150 through the air inlet 113, the temperature of the air flow is reduced, and the reduced air flow enters the voltage detector 100 through the air outlet 115 and exchanges heat with heat generated by parts in the voltage detector 100, so that the temperature in the voltage detector 100 is reduced;
one end of the heat pipe 330 is fixedly attached to the refrigerating surface of the semiconductor refrigerating sheet 310, the other end of the heat pipe 330 penetrates through the air outlet 115, one end of the heat pipe 330 penetrating through the air outlet 115 extends to the heat accumulation position in the voltage detector 100 to conduct directional heat dissipation and cooling, so that cooling efficiency at a branch pipe with a higher temperature can be improved, continuous high temperature of the internal temperature of the device is avoided, the internal environment is relieved, and the service life of components is prolonged;
the drying box 151 arranged in the air flow channel 150 is placed at the air outlet 115, the drying box 151 is filled with the replaceable drying agent, ventilation openings are formed in two side faces of the drying box 151, the inside of the voltage detector 100 is communicated with the air flow channel 150 through the ventilation openings, air entering the air flow channel 150 can be dried, the moist air flow is prevented from entering the voltage detector 100, and the voltage detector is simple in structure and strong in applicability.
In addition, the power distribution network full-voltage fault on-line monitoring device according to the embodiment of the application has the following additional technical characteristics:
in the embodiment of the invention, the air inlet 113 and the air outlet 115 are respectively arranged at two sides of the cooling surface of the semiconductor cooling plate 310, and the outer surface of the air inlet 113 is covered with the dust-proof screen 111.
In a specific embodiment of the present invention, the dust-proof screen 111 is fastened and fixed to the box 110, the heat dissipation fins 311 are attached to the heating surface of the semiconductor refrigeration sheet 310, and the heat dissipation fins 311 are fixed to the upper end of the box 110.
Specifically, as shown in fig. 2-5, a heat-resistant plate 170 is disposed between the box body 110 and the voltage detector 100, the drying box 151 is embedded in the bottom of the box body 110, a cover plate is covered at an opening at the lower end of the drying box 151, and the cover plate is clamped on the lower surface of the box body 110.
In a specific embodiment of the present invention, a temperature sensor is installed in the voltage detector 100, a heat dissipation port is provided at the top of the voltage detector 100, an exhaust fan 101 is installed at the heat dissipation port, a unidirectional air intake valve is installed at the air inlet 113, the temperature sensor is used for monitoring the temperature in the voltage detector 100, and when the temperature reaches a preset value, the semiconductor refrigeration sheet 310 is controlled to operate for forced refrigeration and cooling.
In a specific embodiment of the present invention, an electrical connection slot is installed on the front end surface of the voltage detector 100, the rear end surface of the voltage detector 100 is fixedly connected with the box body 110, a support pad 105 is fixed on the lower surface of the voltage detector 100, and the support pad 105 not only plays a supporting role, but also leaves a space for the bottom of the voltage detector 100, so that air flows into the air flow channel 150 through the air inlet 113.
In a specific embodiment of the present invention, the case 110 is integrally formed with the housing of the voltage detector 100, and the plurality of support pads 105 are provided, and the plurality of support pads 105 are respectively provided at corners of the voltage detector 100.
Specifically, as shown in fig. 3-7, a clamping block 112 is fixed at one end of the box body 110, a clamping groove 103 is provided at one end of the voltage detector 100, and the clamping block 112 is clamped in the clamping groove 103 in a matching manner.
In a specific embodiment of the present invention, the drying agent may be absorbent cotton or dry particles, the airflow channel 150 is in a flat space structure, a plurality of baffles 153 are fixed in the airflow channel 150, the baffles 153 are arranged in a crossing manner, and the baffles 153 are arranged between the air inlet 113 and the air outlet 115;
the drying agent is suitable for preventing the components and parts such as instruments, meters, electrical equipment and the like from being wetted, and the drying agent is a substance capable of removing moisture in wet substances and is divided into two types: chemical drying agents such as calcium sulfate and calcium chloride, etc., are dried by combining with water to produce a hydrate; physical drying agents such as silica gel and activated alumina are dried by physically adsorbing water.
Specifically, the voltage detector 100 housing may be a stainless steel piece or a plastic piece; the semiconductor refrigeration piece 310 is electrically connected with the temperature sensor through a controller.
Other configurations and operations of the voltage detector 100, the semiconductor refrigeration tablet 310, and the temperature sensor according to embodiments of the present application are known to those of ordinary skill in the art and will not be described in detail herein.
It should be noted that, specific model specifications of the voltage detector 100, the semiconductor refrigeration piece 310, and the temperature sensor need to be determined by selecting a model according to actual specifications of the device, and a specific model selection calculation method adopts the prior art, so detailed descriptions thereof are omitted.
The power supply of the voltage detector 100, the semiconductor cooling fin 310, and the temperature sensor, and the principle thereof will be apparent to those skilled in the art, and will not be described in detail herein.
The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the present application, and various modifications and variations may be suggested to one skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes or substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a distribution network full voltage trouble on-line monitoring equipment which characterized in that includes
The device comprises a voltage detector (100), wherein a box body (110) is fixed on one side of the voltage detector (100), and a cooling component (300) is arranged in the box body (110);
the cooling assembly (300) comprises a semiconductor refrigerating sheet (310) and a heat pipe (330), wherein a partition plate (130) is fixed in the box body (110), the semiconductor refrigerating sheet (310) is embedded on the surface of the partition plate (130), an air flow channel (150) is formed between the partition plate (130) and the bottom of the box body (110), and the refrigerating surface of the semiconductor refrigerating sheet (310) is arranged in the air flow channel (150);
an air inlet (113) is formed in the bottom of the box body (110), the air inlet (113) is communicated with the air flow channel (150), an air outlet (115) is formed in one side of the air flow channel (150), the air outlet (115) is communicated with the inside of the voltage detector (100), one end of the heat pipe (330) is fixedly attached to the refrigerating surface of the semiconductor refrigerating sheet (310), and the other end of the heat pipe (330) penetrates through the air outlet (115);
the novel electric energy meter is characterized in that a drying box (151) is arranged in the air flow channel (150), the drying box (151) is arranged at the air outlet (115), the drying box (151) is filled with a replaceable drying agent, ventilation openings are formed in two side faces of the drying box (151), and the inside of the voltage detector (100) is communicated with the air flow channel (150) through the ventilation openings.
2. The power distribution network full-voltage fault on-line monitoring device according to claim 1, wherein the air inlet (113) and the air outlet (115) are respectively arranged on two sides of a refrigerating surface of the semiconductor refrigerating piece (310), and a dustproof screen (111) is covered on the outer surface of the air inlet (113).
3. The power distribution network full-voltage fault on-line monitoring device according to claim 2, wherein the dustproof mesh plate (111) is clamped and fixed with the box body (110), a heat radiating fin (311) is attached to a heating surface of the semiconductor refrigerating sheet (310), and the heat radiating fin (311) is fixed at the upper end of the box body (110).
4. The power distribution network full-voltage fault on-line monitoring device according to claim 1, wherein a heat-resistant plate (170) is arranged between the box body (110) and the voltage detector (100), the drying box (151) is embedded at the bottom of the box body (110), a cover plate is covered at an opening at the lower end of the drying box (151), and the cover plate is clamped on the lower surface of the box body (110).
5. The power distribution network full-voltage fault on-line monitoring device according to claim 1, wherein a temperature sensor is installed in the voltage detector (100), a heat dissipation port is formed in the top of the voltage detector (100), an exhaust fan (101) is installed at the heat dissipation port, and a unidirectional air inlet valve is installed at the air inlet (113).
6. The equipment for on-line monitoring of full-voltage faults of a power distribution network according to claim 1 is characterized in that an electric connection slot is arranged on the front end face of the voltage detector (100), the rear end face of the voltage detector (100) is fixedly connected with the box body (110), and a supporting pad (105) is fixed on the lower surface of the voltage detector (100).
7. The power distribution network full-voltage fault on-line monitoring device according to claim 6, wherein the box body (110) and the voltage detector (100) casing are integrally formed, the support pad (105) is provided with a plurality of support pads, and the plurality of support pads (105) are respectively arranged at corners of the voltage detector (100).
8. The power distribution network full-voltage fault on-line monitoring device according to claim 6, wherein a clamping block (112) is fixed at one end of the box body (110), a clamping groove (103) is formed at one end of the voltage detector (100), and the clamping block (112) is clamped in the clamping groove (103) in a matching manner.
9. The power distribution network full-voltage fault on-line monitoring device according to claim 1, wherein the drying agent is absorbent cotton or dry particles, the air flow channel (150) is of a flat space structure, a plurality of baffles (153) are fixed in the air flow channel (150), the baffles (153) are arranged in a crossed manner, and the baffles (153) are arranged between the air inlet (113) and the air outlet (115).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310587942.3A CN116298702A (en) | 2023-05-24 | 2023-05-24 | Full-voltage fault on-line monitoring equipment for power distribution network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310587942.3A CN116298702A (en) | 2023-05-24 | 2023-05-24 | Full-voltage fault on-line monitoring equipment for power distribution network |
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Cited By (1)
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| CN116699199A (en) * | 2023-08-08 | 2023-09-05 | 国网甘肃省电力公司武威供电公司 | Fault detection device for power distribution network |
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Application publication date: 20230623 |