CN115566623A - Anti-icing and deicing device for split conductor of circuit, sub-conductor spacer and system - Google Patents
Anti-icing and deicing device for split conductor of circuit, sub-conductor spacer and system Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/12—Devices for maintaining distance between parallel conductors, e.g. spacer
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Abstract
The utility model relates to an overhead line deicing technical field that prevents icing provides an anti-icing defroster for fixed mounting on overhead line split conductor. The device comprises a cylindrical cam mechanism and a connecting part. The cylindrical cam mechanism comprises a base, a motor, a speed reducing mechanism, a moving part, an energy storage device, a cylindrical cam and a contact part. The cylindrical cam is rotationally arranged on the base and is in rotary fit with the base and the abutting part, the abutting part is provided with a moving part, the moving part is in movable fit with the base, the energy storage device is arranged between the base and the moving part, and the base and the moving part are connected with different sub-conductors of the split conductor through the connecting part respectively. When the contact piece crosses the section step of the contact surface of the cylindrical cam, the potential energy of the energy storage device arranged between the base and the moving part is suddenly changed, and the suddenly changed potential energy acts on different sub-conductors of the split conductor of the overhead line through the connecting part, so that the split conductor generates vibration and shakes off ice to achieve the purposes of preventing and removing ice.
Description
Technical Field
The utility model relates to an overhead line split conductor deicing technique field that prevents ice especially relates to an overhead line split conductor deicing device that prevents ice based on cylinder cam mechanism for distributed fixed mounting is on overhead line split conductor.
Background
The problem of ice coating of split conductors of overhead lines is one of serious natural disasters of domestic and foreign power systems. The severe icing of the overhead line can cause serious problems of tower falling, line breaking and the like which affect the safe operation of a power grid, and the ice coating falling can cause the ice removing jump of the line, so that the line is burnt, the fault trip and the like to be stopped forcibly. Under the influence of weather conditions, micro-terrains, micro-meteorology and large-scale construction of power grids, icing disasters frequently occur in recent years, and the load of overhead lines is increased due to ice coating of rain and snow in many areas, so that the events of tower collapse, disconnection, fault tripping and the like and huge economic loss are caused.
Generally, the phenomenon of icing of the conductors of an overhead line is due to some specific meteorological causes, among which are mainly: temperature, humidity, cold and warm air convection, circulation, wind speed and other meteorological factors. Supercooled water droplets in the atmosphere are extremely unstable in the form of a liquid because of the absence of crystallization nuclei, and when falling onto the wire, the wire will act as crystallization nuclei, and the supercooled water droplets rapidly condense and adhere to the wire with the effect of heat exchange, forming ice coating. From the formation mechanism, the ice coating can be classified into the following: (1) water vapor in the atmosphere adheres to the lead when supersaturated, and forms radial crystals as rime after sublimation and condensation, and in the forming process, water drops are frozen before being tightly combined with each other, a plurality of gaps or bubbles are contained in the rime, and the rime is low in density, relatively loose and relatively weak in adhesion force with the lead. (2) The clear, smooth and transparent ice coating is formed on the windward side of the wire by supercooled water drops in the atmosphere, and in the forming process, the water drops are frozen after being tightly combined with each other, so that the formed ice coating is smooth and tight, has high density and strong adhesive force with the wire. (3) The supercooled water drops form ice layers which are alternately overlapped by transparency and opaqueness or are similar to ground glass on the windward side, namely mixed freezing is performed, and the density of the ice is high, and the adhesion force of the ice to the conducting wire is relatively strong.
Disclosure of Invention
The damage of ice coating to overhead transmission lines mainly comprises two aspects: firstly, the thickness of the ice coating greatly exceeds the design standard, which can cause the line to bear serious overload and cause tower collapse and line breakage; on the other hand, in the deicing process, forced shutdown of the line is caused by deicing jump of the line, or damage of equipment such as wire fittings and the like is caused by unbalanced deicing of the wires. The harm of ice coating is obvious, and people also strive to find a method for preventing and treating ice coating, which is economical, applicable, environment-friendly, operable and strong in practicability. At present, the deicing method of the power transmission line mainly comprises the following steps: thermal ice melting, manual or mechanical ice removing, hydrophobic and hydrophobic coating, blasting ice removing, natural and passive ice removing and the like. In addition, methods such as electric pulse deicing, pulley scraping method, electromagnetic force impact deicing, robot deicing, laser deicing and the like have been rapidly developed. Although each of the methods has characteristics, an economical, practical, safe and effective deicing method is not available at present, and the research on the problem is one of the focuses of great concern in the field of power transmission.
The ice coating of the split conductor of the overhead line needs to have two conditions: a generic class of conditions that are not or are difficult to change, such as: meteorological conditions such as temperature, humidity and wind speed, etc. obviously once the route path is determined, the meteorological conditions can hardly be changed unless the route path is reselected, but this would be costly. The other type of the method is a development process which needs the thickness of the ice coating to be continuously increased and accumulated after corresponding meteorological conditions are met, namely, a certain time span under the combined action of multiple factors. The ice coating caused by the factors can be used for preventing and removing ice to a certain degree, and mainly comprises 2 aspects: (1) the supercooling water drops or the solid-liquid mixture in the atmosphere are attached to the conducting wire in a necessary heat exchange process, and the supercooling water drops or the solid-liquid mixture in the atmosphere cannot form an accumulation effect on the conducting wire by freezing in the absence of the heat exchange process; (2) the necessary adhesion or cohesion between the ice coating on the wires. The conditions for generating the icing are obtained according to the analysis, and 2 aspects can be considered corresponding to the icing and deicing work: (1) the heat exchange process required for the supercooled water drops or the solid-liquid mixture in the atmosphere to adhere to the wires is destroyed. The common methods include critical current method, photothermal and electrothermal coating thermal anti-icing method. (2) The adhesion or cohesion between the ice coating on the wires must be altered. The common methods comprise various hydrophobic and hydrophobic coatings, various thermal deicing methods, various mechanical deicing methods and the like. Based on the condition (2) for generating ice coating, it is an obvious conventional idea to develop a mechanical deicing device (or robot deicing device) working in a potential field (or ground potential field) such as a conductor (or overhead ground wire) and the like, and to destroy the ice coating. The mechanical anti-icing and deicing device can be divided into a movable deicing device and a fixed installation position (fixed) deicing device according to whether the installation position of the mechanical anti-icing and deicing device relative to a lead (or an overhead ground wire) changes during working. The movable deicing device applies acting force to ice coated on the lead to damage an ice coating layer by using a mechanical device in the process of reciprocating movement of the deicing device on the lead, so that the deicing function is realized. Because of its straightforward and obvious working, the mechanical deicing inventions disclosed so far are mostly focused on mobile deicing devices. However, the main difficulties faced by this device are also evident, mainly consisting of 2 aspects: (1) energy supply is difficult, and both an on-site energy taking mode and a battery replacing mode are very difficult; (2) the difficulty of devices crossing overhead lines is inherent and the reliability problems that arise from this. Fixed deicer designs, which are primarily designed to vibrate a wire by mechanical vibration, have been relatively less developed and shake off ice coating on the wire. However, once the wires are covered with ice, particularly with rime or rime mixture, because the ice is adhered very tightly, if the ice is damaged by vibrating the wires alone, the amplitude (or force acting on the wires) required by the vibration of the wires is very difficult to achieve, and the range of deicing is very limited, and if distributed installation is adopted along the overhead line, the number of required devices is very large, which causes high economic cost, so that the number of documents related to the deicing device using mechanical fixed installation positions is very limited. In fact, during the formation of ice coating, there is a detail which has been neglected by the prior art, namely: in the process of forming the ice coating, although the ice coating formed by condensing the supercooled water on the lead (or overhead ground wire) is tightly adhered, the supercooled water dropping on the lead (or overhead ground wire) can realize ice prevention and ice removal in a larger range by a smaller vibration amplitude in the process that the supercooled water is not condensed into a solid from a liquid, and the ice prevention and ice removal or the severity of the ice coating can be reduced by using a relatively acceptable energy consumption level and the number of devices. By making full use of the time course necessary for the ice layer on the conductor to gradually grow and accumulate, and interfering with or destroying the conditions or processes of ice coating accumulation, ice protection and removal or reduction of the severity of ice coating can be achieved. Through the further analysis of the wire icing mechanism and process, the movable deicing device focuses more on deicing, and is a measure after the fact, while the fixed installation can be used for ice prevention, and can be a measure in the middle of the fact and before the fact, so that a feasible idea is provided for the method for preventing and deicing by adopting the fixed installation position.
Based on the analysis, the anti-icing and deicing device with the mechanical fixed installation positions is additionally arranged on the overhead line in a distributed mode, the principle is similar to that of the traditional manual deicing, the feasibility is achieved, and compared with manual deicing, the automation degree and the working efficiency of anti-icing and deicing can be improved to a certain degree. The difficulty mainly focuses on the practical situation that how to stand on extreme harsh objective conditions, and the anti-icing and deicing device which is low in energy consumption, high in efficiency, high in reliability, highly intelligent and fully compatible with the existing tower line system is invented. Generally, a mechanical deicing device, whether mobile or stationary, must have a certain energy supply to perform its anti-icing and deicing functions, but because the mechanical deicing device and the conductor (or overhead ground wire) are both in the same equipotential field (or ground potential field), it is difficult and extremely limited to obtain energy. The invention relates to an anti-icing and deicing device meeting the actual mechanical fixed installation position on site, which is based on the objective constraint that the actually obtained energy is extremely limited, not only needs to deeply analyze the mechanism and the process of icing formation, but also comprehensively considers various objective factors influencing the anti-icing and deicing effects, and can fully exert the working efficiency of the device under various working conditions, and the work of the invention mainly comprises the following 6 aspects by integrating all the factors: (1) the time gap from supercooled water drops to condensation to ice coating is fully utilized, and pre-and in-process measures are mainly taken, so that ice is removed after the ice coating is tightly adhered and frozen, and the energy utilization efficiency is improved; (2) the efficiency of energy use is improved, utilizes less energy supply, improves the effort that each vibration acted on the wire as far as possible, promptly: after the potential energy is slowly accumulated, the potential energy is quickly released, and the energy released by the device at one time is improved; (3) the frequency of the actions of the anti-icing and deicing device is reasonably controlled according to different icing types so as to save energy consumption; (4) the device has the advantages that the mass of the device is reduced, the energy density and the power density of the device are improved, the influence of the device on the existing tower line system is reduced as much as possible, the device is fully compatible with the existing tower line system, and the problem that although the old problem is solved, the new problem is brought is avoided. (5) The device is used in outdoor severe environment for a long time, and is extremely difficult to install and dismantle, so that the requirement on the mean failure-free working time is extremely strict, high-reliability devices are required to be used as far as possible, and the number of components is reduced as far as possible. (6) The cost of the device is reduced, and the economy of the device is improved. In conclusion, the anti-icing and deicing device with the mechanical fixed installation position needs a stable and reliable energy supply source, and needs to reasonably use the obtained limited energy, so that the energy storage and energy release efficiency of the whole anti-icing and deicing device is improved, and the energy density and power density of the device are improved. Some of the prior inventions and literature have explored this area of work to advantage.
The invention relates to a device and a method for removing foreign matters such as snow and ice from an overhead line (CN 1486525A), and provides an anti-icing and deicing device with a mechanical fixed installation position. The invention selects an electromagnetic vibrator which can be operated and controlled, the electromagnetic vibrator is semi-fixedly arranged on the overhead line, and the ice coating on the lead is shaken off by the vibration of the electromagnetic vibrator. Wherein, the selected vibrator is the existing product in the market, such as Wacker 400W ER model of WACKER company in America. Obviously, the invention does not fully consider the practical difficulty faced by energy acquisition, but directly adopts the existing mature products, which directly leads the invention to hardly meet the practical requirements, and more provides a thought and a concept. The electromagnetic vibrator adopts current ripe product main problems to have two aspects: (1) the existing mature product does not consider the energy storage link, and the required energy consumption is far greater than the energy which can be supplied actually; (2) the existing electromagnetic vibrator has relatively high vibration frequency, the too high vibration frequency causes too high energy consumption and too fast attenuation of vibration effect conduction, the deicing range is very limited, and particularly, the high-frequency vibration is almost completely filtered between phases and the ground after passing through an insulator, and the required deicing effect cannot be achieved.
The invention discloses a mechanical vibration deicing device (CN 201417921Y), an overhead cable air explosion vibration deicing device (CN 201549858U) and an overhead ground wire mechanical vibration deicing device (CN 201247941Y), which are manually installed mechanical anti-icing and deicing devices, and have the working principle that the deicing is realized by driving a lead to vibrate by the devices. The invention has the remarkable characteristics of sufficient energy supply, large vibration amplitude of the lead and good deicing effect. However, the invention has some insurmountable disadvantages, such as: (1) the energy supply (or storage) uses chemical energy, namely: the method has the advantages that the explosive is filled in advance, and the device is remotely controlled to detonate and explode after being in place, obviously, the method can be generally used for only one time or a few times, and the explosive needs to be refilled after the corresponding times, so that the efficiency is low; (2) during deicing, the device needs to manually launch a traction rope so as to be hung on a wire needing deicing, and the working efficiency is low.
The invention discloses a method and a device for preventing ice from forming and hanging snow on a high-voltage wire (CN 101286628A), and provides a deicing device for vibrating a lead by vibration of a vibrator. The principle of the invention is simple because the vibrator needs to conduct the vibration acting force to the overhead line through the insulating connecting rod meeting the insulating distance, but the principle is extremely difficult to realize, and particularly for the ultra-high voltage overhead line, the insulating connecting rod can hardly be hung on the overhead line with the distance of dozens of meters from the ground. In actual operation, the device can be regarded as an upgraded version of manual deicing.
The invention discloses a power line gravity impact deicing device and application thereof (CN 102638021A), and provides a deicing device for realizing a gravity impact line by mainly using circuit devices. The invention adopts the electromagnetic driver to pull upwards or release downwards the weight indirectly hung on the lead, so as to generate impact force on the overhead line, thereby shaking off the ice coated on the lead. The invention firstly obtains electric energy from a lead through which current flows by utilizing the principle of electromagnetic induction, and then stores the obtained electric energy through a capacitor. After the capacitor is charged, the electromagnetic driver is driven to lift the heavy object upwards and then release the heavy object downwards by controlling the on and off of the circuit switch, so that the gravitational potential energy of the heavy object is converted into the impact force on the lead, and the aim of deicing the lead is fulfilled. The invention has outstanding advantages. (1) The capacitor is used for storing energy, so that when the energy supply is insufficient, the energy is stored and then is quickly released, and the power density of the device and the impact force on a line are improved. (2) The control logic is very convenient and fast by utilizing active devices such as a switch of a circuit and the like, and various operations such as lifting and releasing of heavy objects are convenient to realize. But the defects of the invention are also obvious. (1) The energy density of the capacitor is relatively small, requiring a large volume and weight, which affects the energy density and economy of the entire device. (2) The requirements of circuit devices such as the capacitor on the use environment are relatively high, and the capacitor is easy to age prematurely and lose functions under the outdoor operation environment of the overhead transmission line. (3) Once the current increases, the cost for closing and opening the circuit switch increases sharply, the weight of the device increases significantly, and the economical efficiency and reliability deteriorate. (4) The invention adopts different ideas of anti-icing and deicing, realizes the conduction and the release of acting force through a circuit, and adopts a mechanical mechanism, namely a cylindrical cam mechanism (1), so that the reliability is relatively high, and the invention is more practical. The vibration effect is generated by utilizing the sudden change of gravity of an additional object, and the energy is released by the energy storage device, so that the relative motion and acceleration are generated between the two sub-conductors to prevent and remove ice.
The invention relates to an intelligent deicing device for four-bundle conductors and an intelligent deicing device for six-bundle power transmission lines (CN 101414739B/CN 102983537B), which utilizes the characteristic that a memory alloy changes in length along with the change of temperature to drive a cam to rotate, so that the distance between the bundle conductors is suddenly changed, and the deicing effect is achieved. However, the invention CN 101414739B does not describe how the pawl and rack can be tripped in the case of a memory alloy balanced with the spring force of the spring, which directly affects the quick return of the device to the initial state. On the other hand, the intrinsic properties of memory alloys are limited by the ambient temperature, and the device cannot return to the initial state if the temperature does not reach a threshold value. Generally, the device can only act once in an icing process of an overhead line caused by weather change, and the lower acting frequency causes the application range to be greatly limited. Furthermore, the invention CN102983537B does not show how the whole device returns to the initial state, which means that the device can be actuated only once after installation, which also greatly limits the use of the device.
The invention discloses an overhead line deicing device (CA 2444216A1/CA2444216C/US7310948B 2), which discloses a deicing device fixedly installed on an overhead line. According to one embodiment of the invention, the disk cam is used for converting the circular motion of the motor into the distance change between the sub-conductors, and the transverse relative displacement between different conductors is generated and then the conductors are suddenly released, so that the transverse vibration of the overhead line conductors is caused, and the aim of removing ice coated on the overhead line conductors is fulfilled. The invention adopts the disk surface cam to enable the wires to generate transverse displacement to realize deicing, and the precondition is that tension potential energy is generated when the distance between different sub-wires is increased. However, this condition is greatly affected by the actual behavior of the subconductors, and the invention fails if distant tensions are experienced between the different subconductors. The anti-icing and deicing device disclosed by the invention better solves the problem by adopting a mode of sealing the cylindrical cam and the abutting piece by force, and has the following advantages. (1) Through the energy storage device spring additionally arranged between the base and the moving part, the influence of the tension direction between the leads is eliminated, and the energy density of the device is improved. (2) Because the energy storage device spring is used, the cylindrical cam and the abutting part adopt a force sealing mode, and the adaptability and the reliability of the device are improved. (3) The base has adopted cavity structures, with cylindrical cam, conflict piece and energy storage device as for among the cavity, has alleviateed the influence of outdoor adverse circumstances, has improved the reliability of device. (4) In the disc cam mechanism, the impact force of the follower mandril is directly transmitted to the rotating shaft of the cam, which causes the bearing of the cam to bear too much, easily causes the bearing to be damaged, and influences the application scene of the device. After the cylindrical cam is adopted, the impact force generated by the abutting piece directly acts on the base, so that the stress of the cylindrical cam rotating shaft bearing is reduced, and the bearing capacity of the lifting device is facilitated. (5) The cylindrical cam is arranged on the turbine, so that the speed reduction and non-return functions are realized, the integration level is improved, and components are reduced. (6) The design of the original working flow based on the disc cam mechanism is unreasonable, the triggering conditions of the disc cam mechanism depend on weather conditions, environmental temperature and humidity or line conditions, repeated triggering is difficult to realize, the use scene is limited to deicing, the disc cam mechanism basically has no anti-icing function, and the disc cam mechanism is basically not suitable for icing or mixed icing.
In order to solve the technical problem or at least partially solve the technical problem, the ice-preventing and deicing device fixedly mounted on the split conductor of the overhead transmission line is designed by taking a mechanical device cylindrical cam mechanism as a concept for switching two states of potential energy accumulation and potential energy release of an energy storage device. The cylindrical cam mechanism is utilized to efficiently and controllably conduct the acting force or torque output of the motor; the cylindrical cam mechanism is reasonably arranged, so that the controllability, the reliability and the application range of the device are improved; by arranging the energy storage device between the base and the moving part, the unit mass energy density of the device is improved. The method comprises the steps of accumulating potential energy on an energy storage device arranged between a base and a moving part by utilizing a cylindrical cam mechanism, releasing the potential energy accumulated in the energy storage device onto a sub-conductor of a split conductor, and vibrating ice coated on the overhead power transmission line. Through repeating and circulating the working processes, the purposes of ice prevention and ice removal of the overhead transmission line are achieved.
The anti-icing and deicing device for the split conductor of the overhead line is used for being fixedly installed on the split conductor of the overhead line and comprises a cylindrical cam mechanism and a connecting component, wherein the cylindrical cam mechanism is arranged between different sub-conductors of the split conductor of the overhead line by utilizing the connecting component;
the cylindrical cam mechanism comprises a base, a motor, a speed reducing mechanism, a moving part, an energy storage device, a cylindrical cam and a contact part; the motor is arranged on the base, and the speed reducing mechanism is in transmission connection between the motor and the cylindrical cam; the cylindrical cam is rotatably arranged on the base and is in rotating fit with the base and the contact piece; the contact piece is provided with the moving component, the moving component is movably matched with the base, and the contact piece is in contact fit with the cylindrical cam under the action of pressure or tension conducted by the moving component;
the energy storage device is arranged between the base and the moving part, and the base and the moving part are respectively connected with different sub-wires of the split conductor through the connecting part;
the contact surface of the cylindrical cam matched with the abutting part is provided with a section step, the section step is of a structure with a fall height on the contact surface, the motor drives the cylindrical cam to rotate through the speed reducing mechanism, so that the moving part arranged on the abutting part generates displacement relative to the base, and the displacement enables the energy storage device arranged between the base and the moving part to store or release potential energy;
when the contact piece crosses the section step on the contact surface of the cylindrical cam, the displacement of the moving part changes suddenly, so that the potential energy of the energy storage device arranged between the base and the moving part changes suddenly, and the suddenly changed potential energy acts on different sub-conductors of the split conductor of the overhead line through the connecting part, so that the split conductor generates vibration and shakes off ice to achieve the aim of preventing and removing ice.
Optionally, the base has a cavity, and the cylindrical cam and the abutting member are disposed in the cavity.
Optionally, the motor control system further comprises a motor controller, wherein the motor controller is electrically connected with the motor and is used for controlling the motor to act, and the action includes: rotating, stopping and regulating speed.
Optionally, the energy storage device is a spring.
Optionally, the spring is an air spring, a column spring or a disc spring.
Optionally, the potential energy accumulated or released between the base and the moving part further comprises tension potential energy between different sub-wires and/or gravitational potential energy of the sub-wires themselves.
Optionally, the energy storage device is disposed between the base and the connecting component disposed on the moving component, or between different sub-wires.
Optionally, the speed reducing mechanism comprises one or more of a gear speed reducing mechanism, a worm gear speed reducing mechanism or a planetary gear speed reducing mechanism.
Optionally, the speed reducing mechanism has a non-return structure.
Optionally, the worm gear and worm reduction gears include worm and turbine, the turbine with the worm meshes, the worm with motor drive connects, the turbine with the base cooperation and rotatory setting are in on the base, be equipped with on the turbine the cylinder cam.
Optionally, the connecting part includes a first frame body and a second frame body, each of the first frame body and the second frame body is provided with at least one wire clamp for connecting a sub-wire, the first frame body is connected with the base, and the moving part is connected with the second frame body.
Optionally, the first frame body and the second frame body both have two end portions; the first end of first support body with the first end of second support body passes through first axis of rotation and rotates and be connected, the second end of first support body with the base passes through the second axis of rotation and rotates and be connected, the moving part with the second end of second support body passes through the third axis of rotation and rotates and connect.
Optionally, the first frame body and the second frame body are provided with two end parts; the first end part of the first frame body and the first end part of the second frame body are correspondingly and rotatably connected with the fourth rotating shaft and the fifth rotating shaft at the two ends of the first connecting plate, and the second end part of the first frame body and the second end part of the second frame body are correspondingly and rotatably connected with the sixth rotating shaft and the seventh rotating shaft at the two ends of the second connecting plate; the first end of the first frame body is rotatably connected with the base through the fourth rotating shaft, and the second end of the second frame body is rotatably connected with the moving part through the seventh rotating shaft.
Optionally, the first frame body and the second frame body both have two end portions; the first end part of the first frame body is rotationally connected with the first end part of the second frame body through a first rotating shaft, the second end part of the first frame body and the second end part of the second frame body are correspondingly rotationally connected with a third connecting plate and a fourth connecting plate through an eighth rotating shaft and a tenth rotating shaft, and the third connecting plate is rotationally connected with the fourth connecting plate through a ninth rotating shaft; the moving part is rotatably connected with the first rotating shaft connected with the first frame body and the second frame body, and the base is rotatably connected with the ninth rotating shaft connected with the third connecting plate and the fourth connecting plate.
Optionally, the first frame body and the second frame body are provided with two end parts; the first end of the first frame body is connected with the first end of the second frame body in a sliding mode, and the second end of the first frame body is connected with the second end of the second frame body in a sliding mode; the base is connected with the first frame body, the moving part is connected with the second frame body, and the energy storage device is connected between the first frame body and the second frame body.
Optionally, the connecting part includes three or more frame bodies, two of the frame bodies are respectively connected to different sub-wires, one of the two frame bodies is connected to the base, and the other frame body is connected to the moving part.
Optionally, the number of the cylindrical cam mechanisms is multiple, and the corresponding multiple bases and the multiple moving parts are respectively connected with multiple different rack bodies.
Optionally, the device further comprises a control module, wherein the control module is used for controlling the plurality of cylindrical cam mechanisms to act at a set time sequence and/or frequency.
Optionally, the system further comprises an energy obtaining module, wherein the energy obtaining module comprises one or more induction electricity taking units installed on the lead in an equipotential manner, and the induction electricity taking units are used for collecting magnetic field energy around the lead, converting the magnetic field energy into electric energy, and then supplying the electric energy to the motor;
or the energy acquisition module comprises a photovoltaic cell panel and an energy storage capacitor or an energy storage battery connected with the photovoltaic cell panel.
Optionally, a plurality of the induction electricity taking units are connected in series and/or in parallel.
Optionally, the wire clamp is a rotary wire clamp.
Optionally, the induction electricity taking unit is arranged in the rotary wire clamp.
Optionally, the system further comprises a communication module for receiving a master station or manual command, or communicating between different devices or relaying communication.
Optionally, the mobile terminal further comprises an acceleration sensor, wherein the acceleration sensor is used for detecting the acceleration of the base or the moving part and comparing the detected acceleration with a set acceleration threshold value to form state information.
Optionally, the cylindrical cam is a cylindrical end face cam or a cylindrical barrel cam.
The disclosure also provides an overhead line split conductor anti-icing and deicing sub-conductor spacer for the split conductor of the overhead line, which comprises a sub-conductor spacer body and at least one overhead line split conductor anti-icing and deicing device arranged on the sub-conductor spacer body.
The disclosure also provides an overhead line split conductor anti-icing and deicing system, which is used for split conductors of overhead lines and is characterized by comprising a plurality of overhead line split conductor anti-icing and deicing devices or a plurality of overhead line split conductor anti-icing and deicing sub-conductor spacers, wherein the plurality of overhead line split conductor anti-icing and deicing devices or the plurality of overhead line split conductor anti-icing and deicing sub-conductor spacers are distributed and installed on the overhead line split conductors.
Optionally, the control system is further configured to control the plurality of overhead line split conductor anti-icing and deicing devices or the plurality of overhead line split conductor anti-icing and deicing sub-conductor spacers to operate at a set timing sequence and/or frequency.
The utility model provides a prevent ice defroster for fixed mounting on overhead line split conductor. The device comprises a cylindrical cam mechanism and a connecting part. The cylindrical cam mechanism comprises a base, a motor, a speed reducing mechanism, a moving part, an energy storage device, a cylindrical cam and a contact part. The cylindrical cam is rotationally arranged on the base and is in rotary fit with the base and the abutting part, the abutting part is provided with a moving part, the moving part is in movable fit with the base, the energy storage device is arranged between the base and the moving part, and the base and the moving part are connected with different sub-conductors of the split conductor through the connecting part respectively. When the contact piece crosses the section step of the contact surface of the cylindrical cam, the potential energy of the energy storage device arranged between the base and the moving part is suddenly changed, and the suddenly changed potential energy acts on different sub-conductors of the split conductor of the overhead line through the connecting part, so that the split conductor generates vibration and shakes off ice to achieve the purposes of preventing and removing ice.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a two-split conductor anti-icing and de-icing device based on a cylindrical cam mechanism;
FIG. 2 is a cylindrical cam mechanism for ice protection and removal of split conductors of an overhead line;
FIG. 3 is a cylindrical cam mechanism based on a pull interference fit;
FIG. 4 is a cylindrical cam mechanism based on a press interference fit;
FIG. 5 is a schematic diagram of an operation of the induction power-taking unit;
FIG. 6 is a schematic circuit diagram of an induction power unit;
FIG. 7 shows a rotary clamp with an induction power-taking unit inside;
FIG. 8 is a view of a quad sub conductor spacer for ice protection and removal by relative rotation of the frame;
FIG. 9 is a quad sub-conductor spacer for ice and ice protection by relative twisting of the frame;
FIG. 10 is a view of a quad-bundled sub-conductor spacer for ice protection and removal by rotation of the frame with four rotating shafts engaged;
FIG. 11 is a view of a quad sub-conductor spacer for ice protection and removal by relative telescoping of the frame;
FIG. 12 is a view of a three-split sub-conductor spacer for ice protection and removal by relative rotation of the frame;
FIG. 13 is a cross star quad-split sub-conductor spacer with relative motion between carriers to prevent ice and remove ice;
FIG. 14 is a view of a quad-bundled conductor spacer for ice protection and removal using multiple connecting plates in conjunction with multiple rotating shafts;
FIG. 15 is an anti-icing and de-icing arrangement between two sub-conductors using a multi-link plate;
FIG. 16 is a work flow of an overhead line split conductor anti-icing and deicing device based on a cylindrical cam mechanism;
fig. 17 is an exploded view of the cylindrical barrel cam.
Reference numerals:
1. a cylindrical cam mechanism; 2. a base; 3. a motor; 4. a speed reduction mechanism; 5. a moving part; 6. an energy storage device; 101. a cylindrical cam; 102. a contact member; 103. a worm; 104. a turbine; 105. a groove that mates with the interference member 102; 70. an induction electricity taking unit; 71. an iron core of the induction electricity taking unit; 72 secondary coil of the induction power unit; 73. a primary coil (i.e., a sub-conductor) of an induction power-taking unit; 74. a rotary wire clamp with an induction electricity taking unit arranged inside; 701. a first frame body (connected with the base 2); 702. a second frame body (connected with the moving part 5); 703. a wire clamp (connected to the sub-conductor); 704. a third frame body; 705. a fourth frame body; 706. a fifth frame body; 707. a sixth frame body; 708. a seventh frame body; 709. an eighth frame body; 801. a first rotating shaft; 802. a second rotating shaft; 803. a third rotating shaft; 804. a fourth rotating shaft; 805. a fifth rotating shaft; 806. a sixth rotating shaft; 807. a seventh rotating shaft; 808. an eighth rotating shaft; 809. a ninth rotating shaft; 810. a tenth rotation shaft; 811. an eleventh rotation axis; 812. a twelfth rotating shaft; 813. a thirteenth rotational shaft; 814. a fourteenth rotation axis; 815. a fifteenth axis of rotation; 816. a sixteenth axis of rotation; 817. a seventeenth rotating shaft; 818. an eighteenth rotating shaft; 819. a nineteenth rotating shaft; 820. a twentieth rotary shaft; 821. a twenty-first rotating shaft; 822. a twenty-second rotating shaft; 823. a twenty-third rotating shaft; 824. a twenty-fourth rotating shaft; 825. a twenty-fifth rotating shaft; 826. a twenty-sixth rotating shaft; 827. a twenty-seventh rotating shaft; 828. a twenty-eighth rotating shaft; 901. a first connecting plate; 902. a second connecting plate; 903. a third connecting plate; 904. a fourth link plate; 905. a fifth connecting plate; 906. a sixth connecting plate; 907. a seventh tie plate; 908. an eighth link plate; 909. a ninth link plate; 910. a tenth link plate; 911. an eleventh link plate; 912. a twelfth connecting plate.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
As shown in fig. 1, 8, 9, 10, 11, 12, 13, 14 and 15, an embodiment of the present invention provides an overhead line split conductor anti-icing and deicing device based on a cylindrical cam mechanism, which is used for being fixedly mounted on an overhead line split conductor, and is characterized by comprising a cylindrical cam mechanism 1 and a connecting part, wherein the cylindrical cam mechanism 1 is arranged between different sub-conductors of the overhead line split conductor by using the connecting part. The cylindrical cam mechanism 1 comprises a base 2, a motor 3, a speed reducing mechanism 4, a moving part 5, an energy storage device 6, a cylindrical cam 101 and an abutting part 102. The motor 3 is arranged on the base 2, and the speed reducing mechanism 4 is in transmission connection between the motor 3 and the cylindrical cam 101. The cylindrical cam 101 is rotatably provided on the base 2 to be rotatably engaged with the base 2 and the abutting member 102. The contact part 102 is provided with a moving part 5, the moving part 5 is movably matched with the base 2, and under the action of pressure or pulling force conducted by the moving part 5, the contact part 102 is in contact fit with the cylindrical cam 101. The energy storage device 6 is arranged between the base 2 and the moving part 4, and the base 2 and the moving part 5 are respectively connected with different sub-conductors of the split conductor through connecting parts. The contact surface of the cylindrical cam 101 matched with the interference piece 102 is provided with a section step, the section step is a structure with a drop height on the contact surface, the motor 3 drives the cylindrical cam 101 to rotate through the speed reducing mechanism 4, so that the moving part 5 arranged on the interference piece 102 generates displacement relative to the base 2, and the displacement enables the energy storage device 6 arranged between the base 2 and the moving part 5 to store or release potential energy. When the contact piece 102 crosses the section step of the contact surface of the cylindrical cam 101, the displacement of the moving part 5 changes suddenly, so that the potential energy of the energy storage device 6 arranged between the base 2 and the moving part 5 changes suddenly, and the changed potential energy acts on different sub-conductors of the split conductor of the overhead line through the connecting part, so that the split conductor generates vibration and shakes off ice to achieve the purposes of preventing and removing ice.
In some examples, the base 2 has a cavity in which the cylindrical cam 101, the interference 102 are arranged in order to improve the reliability of the device. Through increasing the machine controller who is connected with motor 3 electricity, can conveniently control motor 3 action, promptly: rotation, stop, and adjustment of the motor speed. The energy storage device 6 is preferably a spring, which is an air spring, a column spring or a disc spring. The energy storage means 6 may also be arranged between the base 2 and the connecting part provided on the power carrying part 5 or between different sub-conductors. The potential energy accumulated or released by the energy storage device 6 between the base 2 and the moving part 5 can also comprise tension potential energy between the sub-wires and/or gravitational potential energy of the sub-wires themselves.
A process of deicing according to the invention is shown in fig. 10 of the invention "an overhead line deicing device" (CA 2444216A1/CA2444216C/US7310948B 2), from which it is known that a deicing operation comprises 6 working steps performed sequentially, respectively: energy input, energy collection, energy storage, energy release of a triggering mechanism and energy application of an actuating mechanism to a lead wire to complete vibration deicing, wherein the energy storage is not a necessary working step. Obviously, the device works in a sequential and one-time working process, and the input energy is collected, the collected energy is stored, the collected energy is triggered and released in sequence, and then the energy is output to the overhead line by using the execution system. The problem of such a deicing workflow is obvious, considering the complexity of the causes of icing, the effect of deicing required can hardly be achieved by only one action of the device, and different types of icing also require different vibration frequencies of the device, which causes that the deicing effect of the invention is greatly limited.
Unlike the present invention, the apparatus of the present application employs the operation steps of periodically repeating and cycling the anti-icing and de-icing at a certain frequency. Fig. 16 shows the working flow of the present invention for ice protection and ice removal. When the device runs, the energy acquisition module provides electric energy for the whole device, and the device determines whether to enter an anti-icing and de-icing state according to on-site meteorological conditions, a line icing state or manual instructions. Once the device enters the anti-icing and deicing state, the electrified motor 3 continuously outputs mechanical energy, the motor 3 drives the moving part 5 to slowly leave the initial point position (the lowest point of the section step) relative to the base 2 through the cylindrical cam mechanism 1, and the energy storage device 6 starts to slowly store the elastic potential energy, the tension potential energy and the gravity potential energy of the spring along with the displacement of the moving part 5. When the moving part 5 moves to the critical position of the termination point (the highest point of the section step), the energy accumulated by the device reaches the extreme value. After the moving part 3 crosses the critical position (section step) of the termination point, the device instantly releases the accumulated potential energy to different sub-conductors through the relative motion of the moving part 5 and the base 1, so that at least one sub-conductor rapidly moves to generate acceleration, the moving part 5 returns to the initial point position along with the energy release, the cycle from energy accumulation to release is completed once, the above action processes are periodically repeated, the overhead line generates a vibration effect according to a certain frequency, and the ice prevention and the ice removal of the overhead transmission line are realized.
In order to better meet the field practice, the invention optimizes, balances and compromises the reliability of the device, the energy density of unit mass, the energy use efficiency, the anti-icing and deicing effects and the like. With the cylindrical cam mechanism 1 and the energy storage means 6, the energy density of the device is increased in the event of an insufficient energy supply. By adopting the cylindrical cam mechanism 1, the number of used components is small, and the overall reliability of the device is improved. Besides, the power density of the motor 3, the reliability of the motor 3, the parameters of the cylindrical cam 101, the transformation ratio of the speed reducing mechanism 4, the parameters of the energy storage device 6, the moving distance of the moving part 5 and other state parameters can be comprehensively optimized, so that the overall performance of the device can be improved.
In the present invention, the base 2 and the moving member 5 are provided with connecting members respectively connected to different sub-conductors of the split conductor, and the connecting members can transmit the acting force generated by the relative movement between the base 2 and the moving member 5 to the split conductor. The energy storage means 6 is arranged between the base 2 and the moving part 5 for generating a relative displacement for storing or releasing potential energy. The movement between the base 2 and the moving part 5 is relative, and if the moving part 5 is taken as a reference, the base 2 can be considered to move relative to the moving part 5. In a broader sense, for the case where there are a plurality of moving members 5, for a portion of the moving members 5, another portion of the moving members 5 and their connecting members may be regarded as the connecting members of the base 2. That is, for two moving parts 5 moving relative to each other, one of them can be regarded as a reference object and considered to be relatively stationary, and the other and the corresponding connecting part are regarded as the connecting part of the base 2 and the sub-conductor.
The connecting parts in the present invention collectively provide examples of the following various implementations.
(1) As shown in fig. 1, the base 2 and the moving member 5 are each provided with a connecting member, which is connected to different sub-conductors of the split conductor, respectively, using a wire clamp or a rotary wire clamp.
(2) As shown in fig. 8, 9, 10, and 11, the connecting member includes a first frame and a second frame, at least one wire clip 703 for connecting a sub-wire is disposed on each of the first frame 701 and the second frame 702, the first frame 701 is connected to the base 2, and the moving member 5 is connected to the second frame 702.
(3) As shown in fig. 8, each of the first frame 701 and the second frame 702 has two ends; the first end of the first frame 701 is rotatably connected to the first end of the second frame 702 through a first rotating shaft 801, the second end of the first frame 701 is rotatably connected to the base 2 through a second rotating shaft 802, and the second end of the second frame 702 is rotatably connected to the second rotating shaft 803.
(4) As shown in fig. 9, the first frame 701 and the second frame 702 each have two ends; the first end of the first frame 701 and the first end of the second frame 702 are correspondingly and rotatably connected with the fourth rotating shaft 804 and the fifth rotating shaft 805 at the two ends of the first connecting plate 901; the second end of the first frame 701 and the second end of the second frame 702 are rotatably connected with the sixth rotating shaft 806 and the seventh rotating shaft 807 at the two ends of the second connecting plate 902, respectively; the first end of the first frame 701 is rotatably connected to the base 2 by a fourth rotating shaft 804, and the second end of the second frame 702 is rotatably connected to the moving member 5 by a seventh rotating shaft 807.
(5) As shown in fig. 10, each of the first frame 701 and the second frame 702 has two ends; the first end of the first frame body 701 is rotatably connected with the first end of the second frame body 702 through a first rotating shaft 801, the second end of the first frame body 701 and the second end of the second frame body 702 are correspondingly rotatably connected with a third connecting plate 903 and a fourth connecting plate 904 through an eighth rotating shaft 808 and a tenth rotating shaft 810, and the third connecting plate (903) and the fourth connecting plate (904) are rotatably connected through a ninth rotating shaft 809; the moving member 5 is rotatably coupled to a first rotating shaft 801 coupling the first frame 701 and the second frame 702, and the base 2 is rotatably coupled to a ninth rotating shaft 809 coupling the third link plate 903 and the fourth link plate 904.
(6) As shown in fig. 11, the first frame 701 and the second frame 702 have two ends; a first end of the first frame body 701 is connected with a first end of the second frame body 702 in a sliding manner, and a second end of the first frame body 701 is connected with a second end of the second frame body 702 in a sliding manner; the base 2 is connected with the first frame 701, the moving part 5 is connected with the second frame 702, and the energy storage device 6 is connected between the first frame 701 and the second frame 702.
(7) As shown in fig. 12, for a three-split overhead line, the three-split sub-conductor spacer body is divided into three parts, namely: the third frame 704, the fourth frame 705 and the fifth frame 706 are connected to the base 2 and the moving member 5 by 4 rotation shafts (an eleventh rotation shaft 811, a twelfth rotation shaft 812, a thirteenth rotation shaft 813 and a fourteenth rotation shaft 814). When the base 2 and the moving part 5 move relatively, the acting force is transmitted to the sub-conducting wire through the 3 frame bodies and the 4 rotating shaft.
(8) As shown in fig. 13, in the cross-shaped sub-conductor spacer of the quad-bundled conductor, the sub-conductor spacer is divided into 3 frames (sixth frame 707, seventh frame 708, eighth frame 709), and the force generated between the base 2 and the moving member 5 is transmitted to the sub-conductor through 4 rotating shafts (fifteenth rotating shaft 815, sixteenth rotating shaft 816, seventeenth rotating shaft 817, eighteenth rotating shaft 818).
(9) As shown in fig. 14, the first frame body 701 and the second frame body 702 are connected by a fifth link plate 905, a sixth link plate 906, a seventh link plate 907, an eighth link plate 908, and 6 rotation shafts (a nineteenth rotation shaft 819, a twentieth rotation shaft 820, a twenty-first rotation shaft 821, a twenty-second rotation shaft 822, a twenty-third rotation shaft 823, and a twenty-fourth rotation shaft 824), respectively. Wherein the base 2 is rotatably connected to the rotation shaft 820 and the motion member 5 is rotatably connected to the rotation shaft 823. When the base 2 and the moving part 5 move relatively, the acting force is transmitted to the sub-conducting wire through the frame body 2, the connecting plate 4 and the rotating shaft 6.
In fig. 15, a structure in which a link plate and a rotary shaft are connected as a connecting member to the base 2 and the moving member 5 is adopted. The first frame body 701 and the second frame body 702 are connected to 4 rotation shafts (a twenty-fifth rotation shaft 825, a twenty-sixth rotation shaft 826, a twenty-seventh rotation shaft 827 and a twenty-eighth rotation shaft 828) through 4 link plates (a ninth link plate 909, a tenth link plate 910, an eleventh link plate 911 and a twelfth link plate 912). The moving member 5 is connected to a rotating shaft 828, and the base 2 is connected to a rotating shaft 826. The movement effect is similar to that of figure 1, and because a connecting rod and rotating shaft structure is adopted, the telescopic effect can be amplified to a certain degree, or the torque required to be output by the motor 3 during movement is reduced, so that the effect similar to that of a lever or a speed reducing mechanism 4 is achieved.
The connecting part comprises three or more frame bodies, two of the frame bodies are respectively connected with different sub-wires, one of the two frame bodies is connected with the base 2, and the other frame body is connected with the moving part 5. The device of the invention can comprise a plurality of cylindrical cam mechanisms 1, and a plurality of bases (2) and a plurality of moving parts (5) corresponding to the cylindrical cam mechanisms are respectively connected with a plurality of different frame bodies. These mechanisms can control the plurality of cylindrical cam mechanisms 1 to act at a set timing and/or frequency using a control module. In the above embodiments, the connecting members, which are different from the base 2 and the moving member 5, are formed by dividing the corresponding sub-conductor spacer into two or more frame bodies, and driving/releasing the relative movement between the frame bodies by using the cylindrical cam mechanism 2 to accumulate or release potential energy, so that the acting force is transmitted to the sub-conductors to perform anti-icing and de-icing. The sub-conductor spacer in the existing tower line system is fully utilized, and the newly added anti-icing and deicing device is favorably improved and is compatible with the existing tower line system.
The acting force transmitted by the moving part 5 in the invention can be pulling force (figure 3) or pressing force (figure 4), and different cylindrical cam mechanisms are required to be adopted for acting forces in different directions. For a certain cylindrical cam mechanism, the direction of its force must be certain. The corresponding cylindrical cams also include two types, namely, a cylindrical end cam (fig. 3 and 4) or a cylindrical barrel cam (fig. 17) can be adopted. In fact, other types of cams can also achieve the similar function of the cylindrical cam in the invention, and the cylindrical cam is mainly considered to have better bearing capacity in the invention.
The energy acquisition module is used for supplying energy to the anti-icing and deicing device and the motor 3, and the energy acquisition module can acquire wind energy, solar energy, magnetic field energy and the like. In the present embodiment, the energy obtaining module includes one or more induction power obtaining units 70 (fig. 5 and 6) installed on the overhead transmission line conductor in an equipotential manner, and the induction power obtaining unit 70 includes a primary side coil (i.e., a sub-conductor) 73, an iron core 71 sleeved outside the primary side coil 73, and a secondary coil 72 wound on the iron core 71. Illustratively, a primary-side current I flows through the primary-side coil 73 1 Generating an induced current I on the secondary coil 2 And then the output voltage U is generated by an AC/DC circuit or an AC/AC circuit o And an output current I o And the power supply is output to the cylindrical cam mechanism 1 or output to the cylindrical cam mechanism 1 through an energy storage battery or a capacitor. The induction electricity-taking unit 70 is configured to convert magnetic field energy around the wire into electric energy, and supply the electric energy to the cylindrical cam mechanism 1 and other devices. Wherein, the plurality of induction taking units 70 may be connected in series and/or in parallel. In some examples, the clamp (703) for connecting the sub-wires is a rotary clamp (74), and the induction power unit (70) is arranged in the rotary clamp (74), so that the integration degree of the device is improved.
The cylindrical cam mechanism 1 in the device of the invention also comprises a speed reducing mechanism 4 which is in transmission connection between the motor 3 and the cylindrical cam 101, and the speed reducing mechanism 4 can also be integrated or fused with the motor 3. The speed reduction mechanism 4 includes one or more of a gear speed reduction mechanism, a worm gear speed reduction mechanism, or a planetary gear speed reduction mechanism, and the speed reduction mechanism 4 preferably has a non-return structure. The speed reducing mechanism shown in fig. 3 and 4 adopts a worm 103 and a worm wheel 104, the worm wheel 103 is meshed with the worm 104, the worm 103 is arranged on an output shaft of the motor 3, the worm wheel 104 is matched with the base 2 and is rotatably arranged on the base 2, and the worm wheel 103 is provided with a cylindrical cam 102.
The anti-icing and deicing device further comprises a communication module used for receiving a master station or manual command, or carrying out communication or relay communication among different devices. In some examples, a speed sensor is also included for detecting acceleration of the base 2 or moving part 5 and comparing the detected acceleration to a set acceleration threshold to form status information.
The disclosure also provides an overhead line split conductor anti-icing and deicing sub-conductor spacer for a split conductor of an overhead line, which comprises a sub-conductor spacer body and at least one overhead line split conductor anti-icing and deicing device installed on the sub-conductor spacer body. A plurality of the overhead line split conductor anti-icing and deicing devices or anti-icing and deicing subconductor spacer bars are arranged in an easily-icing section of the overhead line split conductor in a distributed manner according to a certain distance to form an overhead line split conductor anti-icing and deicing system which is used for the overhead line split conductor anti-icing and deicing operation.
By adding the intelligent communication control system in the overhead line split conductor anti-icing and deicing device, or the anti-icing and deicing sub-conductor spacer, or the overhead line split conductor anti-icing and deicing system, the anti-icing and deicing modes are coordinately controlled by using a remote master station, or a manual command, or autonomous control, timely actions are intelligently controlled by combining the icing condition and the running environment of the line, the action strategy of the device and the anti-icing and deicing modes of the line are reasonably selected, and the action is carried out with a set time sequence or frequency, so that the influence of unbalanced deicing on the overhead line can be reduced. The intelligent communication control system includes: communication module, motor controller, control module, control system and intelligent management unit. The communication module is communicated with the master station, the manual operators and other devices through a wireless network, has the functions of routing, relaying and forwarding information of other communication modules, and is networked with communication units of other devices to form an ad hoc network. Different control modules are mutually interacted through communication units to form a control system, and then the anti-icing and deicing devices or the anti-icing and deicing sub-conductor spacing rods of the split conductors of the overhead lines can be controlled to act at a set time sequence or frequency. The communication module of the intelligent communication control system can also communicate with the anti-icing and deicing methods or devices of other inventions and other principles, and cooperate with each other to jointly achieve better anti-icing and deicing effects. The intelligent management unit has a self-checking function, is responsible for collecting state information of the environment and the device and reporting the state information to a master station or an operator through the communication unit according to needs, and is responsible for integrating various information to judge whether to start or close the deicing function or select a required anti-icing and deicing strategy. The typical self-checking function comprises that an acceleration sensor is added in an intelligent communication control system to detect the acceleration of the movement of the base 2 or the moving part 5, and the detected acceleration is compared with a set acceleration threshold value, so as to judge whether the vibration anti-icing and de-icing effects generated by the device per se meet the requirements or not. Typical anti-icing and de-icing strategies include: for a tension section or a linear tower section, the motion sequence of the device is gradually transited from two sides to the middle or is opposite to the two sides; for the repeated ice-covered area, the distribution and installation number of the anti-icing and deicing devices is increased, and the action force and frequency of the device can be improved. The state information collected by the intelligent communication control system comprises: operating environment information, meteorological conditions, icing conditions, acceleration, vibration, audio and video, geographical position, time, and lead current state information. By adding intelligent coordination control, effective intervention is carried out on the deicing and deicing process of the overhead line which is already covered with ice, so that the safety of the overhead line is guaranteed as a targeted deicing strategy, and devices in different positions are coordinated and controlled to perform orderly deicing, so that the problem of line deicing jump caused by large-range simultaneous deicing and deicing is solved, and the severity of the influence of full-gear deicing, concentrated deicing and unbalanced deicing on the overhead transmission line and a power grid is reduced.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one of 8230, and" comprising 8230does not exclude the presence of additional identical elements in a process, method, article, or apparatus comprising the same element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (28)
1. The anti-icing and deicing device for the split conductors of the overhead line is fixedly arranged on the split conductors of the overhead line, and is characterized by comprising a cylindrical cam mechanism (1) and a connecting component, wherein the cylindrical cam mechanism (1) is arranged between different sub-conductors of the split conductors of the overhead line by utilizing the connecting component;
the cylindrical cam mechanism (1) comprises a base (2), a motor (3), a speed reducing mechanism (4), a moving part (5), an energy storage device (6), a cylindrical cam (101) and a collision part (102); the motor (3) is arranged on the base (2), and the speed reducing mechanism (4) is in transmission connection between the motor (3) and the cylindrical cam (101); the cylindrical cam (101) is rotatably arranged on the base (2) and is in rotating fit with the base (2) and the abutting part (102); the motion part (5) is arranged on the abutting part (102), the motion part (5) is in movable fit with the base (2), and the abutting part (102) is in interference fit with the cylindrical cam (101) under the action of pressure or tension conducted by the motion part (5);
the energy storage device (6) is arranged between the base (2) and the moving part (4), and the base (2) and the moving part (5) are respectively connected with different sub-conductors of the split conductor through the connecting part;
the contact surface of the cylindrical cam (101) matched with the contact part (102) is provided with a section step, the section step is of a structure with a drop height on the contact surface, the motor (3) drives the cylindrical cam (101) to rotate through the speed reducing mechanism (4) so as to enable the moving part (5) arranged on the contact part (102) to generate displacement relative to the base (2), and the displacement enables the energy storage device (6) arranged between the base (2) and the moving part (5) to store or release potential energy;
when the contact piece (102) crosses the section step on the contact surface of the cylindrical cam (101), the displacement of the moving part (5) changes suddenly, so that the potential energy of the energy storage device (6) arranged between the base (2) and the moving part (5) changes suddenly, and the changed potential energy acts on different sub-conductors of the split conductor of the overhead line through the connecting part to generate vibration and shake off ice so as to achieve the purposes of preventing and removing ice.
2. Overhead line split conductor ice and ice protection device according to claim 1, characterized in that the base (2) has a cavity in which the cylindrical cam (101) and the interference piece (102) are arranged.
3. The overhead line split conductor ice and ice protection apparatus according to claim 1, further comprising a motor controller electrically connected to said motor (3) for controlling the action of said motor (3), said action comprising: rotating, stopping and regulating speed.
4. The overhead line split conductor ice and ice protection apparatus according to claim 1, wherein said energy storage device (6) is spring loaded.
5. The overhead line split conductor ice and ice protection apparatus of claim 4, wherein the spring is an air spring, a post spring or a disc spring.
6. Overhead line split conductor ice and ice protection apparatus according to claim 1, characterized in that the potential energy accumulated or released between the base (2) and the moving part (5) also contains the tension potential energy between the different subconductors and/or the gravitational potential energy of the subconductors themselves.
7. Overhead line split conductor ice and ice protection device according to claim 1, characterized in that said energy storage means (6) are arranged between said base (2) and said connecting part arranged on said moving part (5), or between different subconductors.
8. The overhead line split conductor ice and ice protection device according to claim 1, wherein the reduction mechanism (4) comprises one or more of a gear reduction mechanism, a worm gear reduction mechanism or a planetary gear reduction mechanism.
9. The overhead line split conductor ice and ice protection device according to claim 1, wherein the deceleration mechanism (4) has a non-return structure.
10. The overhead line split conductor anti-icing and deicing device according to claim 8, wherein the worm and gear reduction mechanism comprises a worm gear (103) and a worm gear (104), the worm gear (103) is meshed with the worm gear (104), the worm gear (103) is in transmission connection with the motor (3), the worm gear (104) is matched with the base (2) and is rotatably arranged on the base (2), and the cylindrical cam (102) is arranged on the worm gear (103).
11. The overhead line split conductor ice and ice protection device according to claim 1, wherein the connecting member comprises a first frame body and a second frame body, the first frame body (701) and the second frame body (702) are respectively provided with at least one wire clamp (703) for connecting sub-conductors, the first frame body (701) is connected with the base (2), and the moving member (5) is connected with the second frame body (702).
12. The overhead line split conductor ice and ice protection device according to claim 11, wherein said first frame (701) and second frame (702) each have two ends; the first end of first support body (701) with the first end of second support body (702) rotates through first axis of rotation (801) and is connected, the second end of first support body (701) with base (2) rotates through second axis of rotation (802) and is connected, moving part (5) with the second end of second support body (702) rotates through third axis of rotation (803) and is connected.
13. The overhead line split conductor ice and ice protection device according to claim 11, wherein said first frame (701) and second frame (702) each have two ends; the first end of the first frame body (701) and the first end of the second frame body (702) are rotatably connected with a fourth rotating shaft (804) and a fifth rotating shaft (805) which are corresponding to the two ends of the first connecting plate (901), and the second end of the first frame body (701) and the second end of the second frame body (702) are rotatably connected with a sixth rotating shaft (806) and a seventh rotating shaft (807) which are corresponding to the two ends of the second connecting plate (902); the first end of the first frame body (701) is rotatably connected with the base (2) through the fourth rotating shaft (804), and the second end of the second frame body (702) is rotatably connected with the moving member (5) through the seventh rotating shaft (807).
14. The overhead line split conductor ice and ice protection device according to claim 11, wherein said first frame (701) and second frame (702) each have two ends; the first end part of the first frame body (701) is rotatably connected with the first end part of the second frame body (702) through a first rotating shaft (801), the second end part of the first frame body (701) and the second end part of the second frame body (702) are correspondingly rotatably connected with a third connecting plate (903) and a fourth connecting plate (904) through an eighth rotating shaft (808) and a tenth rotating shaft (810), and the third connecting plate (903) and the fourth connecting plate (904) are rotatably connected through a ninth rotating shaft (809); the moving component (5) is rotatably connected with the first rotating shaft (801) which is connected with the first frame body (701) and the second frame body (702), and the base (2) is rotatably connected with the ninth rotating shaft (809) which is connected with the third connecting plate (903) and the fourth connecting plate (904).
15. The overhead line split conductor ice and ice protection apparatus according to claim 11, wherein said first frame (701) and second frame (702) each have two ends; the first end of the first frame body (701) is connected with the first end of the second frame body (702) in a sliding mode, and the second end of the first frame body (701) is connected with the second end of the second frame body (702) in a sliding mode; the base (2) is connected with the first frame body (701), the moving part (5) is connected with the second frame body (702), and the energy storage device (6) is connected between the first frame body (701) and the second frame body (702).
16. The overhead line split conductor ice and ice protection apparatus according to claim 1, wherein the connecting member comprises three or more frames, two of the frames are connected to different sub-conductors, one of the frames is connected to the base (2), and the other frame is connected to the moving member (5).
17. The overhead line split conductor ice and ice protection device according to claim 16, wherein the number of said cylindrical cam mechanisms (1) is plural, and a plurality of said bases (2) and a plurality of said moving members (5) corresponding thereto are respectively connected to a plurality of different said racks.
18. The overhead line split conductor ice and ice protection apparatus according to claim 17, further comprising a control module for controlling a plurality of said cylindrical cam mechanisms (1) to operate at a set timing and/or frequency.
19. The overhead line split conductor anti-icing and de-icing device according to claim 1, further comprising an energy harvesting module, wherein the energy harvesting module comprises one or more induction electricity taking units (70) installed on the conductor in an equipotential manner, and the induction electricity taking units (70) are configured to collect magnetic field energy around the conductor, convert the magnetic field energy into electric energy, and provide the electric energy to the motor (3);
or the energy acquisition module comprises a photovoltaic cell panel and an energy storage capacitor or an energy storage battery connected with the photovoltaic cell panel.
20. The overhead line split conductor ice and ice protection apparatus according to claim 19, wherein a plurality of said induction power units (70) are connected in series and/or in parallel.
21. The overhead line split conductor ice and ice protection apparatus of claim 11, wherein said clamp (703) is a swivel clamp (74).
22. The overhead line split conductor ice and ice protection apparatus according to claim 19, wherein the induction power unit (70) is disposed in a rotary clamp.
23. The overhead line split conductor ice and ice protection apparatus of claim 1, further comprising a communication module for receiving a master station or manual command, or communicating between different devices or relaying communications.
24. The overhead line split conductor ice and ice protection apparatus according to claim 1, further comprising an acceleration sensor for detecting acceleration of the base (2) or moving part (5) and comparing the detected acceleration to a set acceleration threshold to form status information.
25. The overhead line split conductor ice and ice protection apparatus according to claim 1, wherein said cylindrical cam is a cylindrical end cam or a cylindrical barrel cam.
26. An overhead line split conductor anti-icing and de-icing sub-conductor spacer for a split conductor of an overhead line, comprising a sub-conductor spacer body and at least one overhead line split conductor anti-icing and de-icing apparatus according to any one of claims 1 to 25 mounted on the sub-conductor spacer body.
27. An overhead line split conductor ice and ice protection system for a split conductor of an overhead line, comprising a plurality of the overhead line split conductor ice and ice protection devices of any one of claims 1 to 25 or a plurality of the overhead line split conductor ice and ice protection sub-conductor spacers, the plurality of the overhead line split conductor ice and ice protection devices or the plurality of the overhead line split conductor ice and ice protection sub-conductor spacers being distributed and mounted on the overhead line split conductor.
28. The overhead line split conductor ice and ice protection system according to claim 27 for an overhead line split conductor further comprising a control system for controlling a plurality of the overhead line split conductor ice and ice protection devices or a plurality of the overhead line split conductor ice and ice protection sub-conductor spacers to operate at a set timing and/or frequency.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211351443.6A CN115566623A (en) | 2022-10-31 | 2022-10-31 | Anti-icing and deicing device for split conductor of circuit, sub-conductor spacer and system |
| PCT/CN2023/078557 WO2024093069A1 (en) | 2022-10-31 | 2023-02-27 | Line bundle conductor anti-icing and deicing device, sub-conductor spacer, and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211351443.6A CN115566623A (en) | 2022-10-31 | 2022-10-31 | Anti-icing and deicing device for split conductor of circuit, sub-conductor spacer and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115566623A true CN115566623A (en) | 2023-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211351443.6A Pending CN115566623A (en) | 2022-10-31 | 2022-10-31 | Anti-icing and deicing device for split conductor of circuit, sub-conductor spacer and system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115566623A (en) |
| WO (1) | WO2024093069A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024093069A1 (en) * | 2022-10-31 | 2024-05-10 | 李荷泉 | Line bundle conductor anti-icing and deicing device, sub-conductor spacer, and system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6660934B1 (en) * | 2002-01-11 | 2003-12-09 | Aep Entech Llc | Power line ice-shedder |
| US6518497B1 (en) * | 2002-06-07 | 2003-02-11 | Allaire Marc-Andre | Method and apparatus for breaking ice accretions on an aerial cable |
| CN201222636Y (en) * | 2008-05-29 | 2009-04-15 | 四平线路器材厂 | Insulation type abruption damping spacing bar |
| CN101431224A (en) * | 2008-12-12 | 2009-05-13 | 武汉大学 | De-icing technology for overhead transmission line |
| CN101572396B (en) * | 2009-06-03 | 2011-04-13 | 湖南大学 | Impact deicing mechanism of overhead line deicing robot |
| CN105896443B (en) * | 2016-06-29 | 2017-07-18 | 国网浙江永康市供电公司 | A kind of anti-icing equipment used on high-tension bus-bar |
| CN212343287U (en) * | 2020-06-19 | 2021-01-12 | 中国电建集团青海省电力设计院有限公司 | Unmanned aerial vehicle deicing device for overhead transmission line |
| CN115566623A (en) * | 2022-10-31 | 2023-01-03 | 李荷泉 | Anti-icing and deicing device for split conductor of circuit, sub-conductor spacer and system |
-
2022
- 2022-10-31 CN CN202211351443.6A patent/CN115566623A/en active Pending
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2023
- 2023-02-27 WO PCT/CN2023/078557 patent/WO2024093069A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024093069A1 (en) * | 2022-10-31 | 2024-05-10 | 李荷泉 | Line bundle conductor anti-icing and deicing device, sub-conductor spacer, and system |
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| WO2024093069A1 (en) | 2024-05-10 |
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Effective date of registration: 20240515 Address after: No. 37, Qinxian North Street, Xiaodian District, Taiyuan, Shanxi 030006 Applicant after: Li Hequan Country or region after: China Applicant after: Shanxi Weizhi Anti icing and Deicing Technology Co.,Ltd. Address before: No. 37, Qinxian North Street, Xiaodian District, Taiyuan, Shanxi 030006 Applicant before: Li Hequan Country or region before: China |