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77results about How to "Improve ice melting efficiency" patented technology

Ice melting system for circuit of power distribution network and ice melting method of ice melting system

ActiveCN106207925AIce melting achievedImproving the ability to resist large-scale rain, snow and freezing disastersOverhead installationApparatus for overhead lines/cablesOutput deviceEngineering
The invention discloses an ice melting system for a circuit of a power distribution network and an ice melting method of an ice melting system. The system comprises a main line fixed AC ice melting unit, a long branch mobile DC ice melting unit and a short branch portable DC ice melting unit, wherein the main line fixed AC ice melting unit comprises an ice melting switch, an ice melting protection device and a fixed ice melting voltage output device, the long branch mobile DC ice melting unit comprises a mobile ice melting power generation device and a first ice melting rectification device which are connected with each other, and the short branch portable DC ice melting unit comprises a portable ice melting power generation device and a second ice melting rectification device which are connected with each other. The method comprises the step of performing AC ice melting or DC ice melting by selecting different ice melting units according to ice coating conditions and circuit types. Designs are performed according to a main line, a long branch and a short branch, ice melting of all circuits of the power distribution network is covered, the ice melting efficiency of the circuit of the power distribution network can be improved, the ice melting range is expanded, and the capability of resisting rain and snow disaster in a large range by the circuit of the power distribution network is improved.
Owner:STATE GRID HUNAN ELECTRIC POWER +2

Ground wire direct current-based deicing automatic wiring system

The invention provides a ground wire direct current-based deicing automatic wiring system, consisting of a direct current-based deicing device (1), a two-transformation three-isolation switch (2), a three-phase bus (3), an outgoing line isolation switch (5) and a wire deicing short-circuit isolation switch (7), wherein the output end of the direct current-based deicing device (1) is connected with the input end of the two-transformation three-isolation switch (2); the output end of the two-transformation three-isolation switch (2) is connected with the three-phase bus (3); the three-phase bus (3) is connected with the outgoing line isolation switch (5); and the outgoing line isolation switch (5) is connected with the wire deicing short-circuit isolation switch (7) in series. The ground wire direct current-based deicing automatic wiring system has the advantages that the switching of wire deicing and ground wire deicing can be rapidly realized, the outage time can be shortened, the deicing efficiency is improved, the safety is improved, the deicing of a plurality of lines can be rapidly realized, guarantee can be provided for the stable operation of a power grid, and the loss caused by freezing disasters is greatly reduced.
Owner:STATE GRID CORP OF CHINA +2

Mobile alternating-current ice melting device for power transmission line

ActiveCN102684127AIce melting achievedExtended range of melting iceOverhead installationOvervoltageElectric power system
The invention relates to a mobile AC (Alternating-Current) ice melting device for a power transmission line in a power system, in particular to a mobile AC ice melting device for a power transmission line of 66 kV. The device is arranged on a truck and consists of a switch cabinet and a series compensation capacitor which are connected, wherein the series compensation capacitor is provided with a discharge coil and an over-voltage protection damping discharge gap which are connected in parallel; and the device has connecting ends respectively connected with a power supply transformer and an ice melting line. When the mobile AC ice melting device is in use, the connecting ends are connected with the power supply transformer and the ice melting line through a quick assembly line and a quick connecting clamp. The device has the advantages of simple principle, flexibility and quickness, large applicable scope, high deicing efficiency, safety and reliability, the normal operation of an ice coating line can be quickly recovered, and the economic efficiency and the application prospect are better.
Owner:STATE GRID CORP OF CHINA +1

High voltage high powder double-tuned method for electric deicing of overhead power transmission line

InactiveCN101964506AQuick Melt IcingMaximize capacity utilizationOverhead installationAutomatic frequency control detailsEngineeringHigh pressure
The invention relates to a high voltage high powder double-tuned method for electric deicing of an overhead power transmission line, comprising the following steps: a second inductor (L2) and a second capacitor (C2) are connected in parallel to form a resonant circuit; then a first resonance capacitor (C1) and the resonant circuit are connected in series between a line deicing power source (E) and an overhead power transmission line (1) to form a double-tuned line electric deicing heating loop; the line deicing power source (E) outputs high frequency voltage with two different frequencies to cause the double-tuned electric deicing heating loop to generate high frequency resonance current with two different frequencies to form two purely resistive resonance electric deicing heating loops; and the electric heating line realizes fast deicing and maximizes the capacity of the line deicing power source (E).The method of the invention has the advantages of high deicing efficiency, fast deicing and capacity of maximizing capacity of a high voltage high powder power electronic frequency conversion resonance device, thus being suitable for deicing the single phase and triphase transmission line and enjoying strong enablement.
Owner:SOUTHEAST UNIV

Clamp device for circuit de-icing

The invention discloses a clamp device for circuit de-icing. The clamp device includes two conducting arc-shaped clamping sheets mounted on the front of a clamp board I and the front end of a clamp board II symmetrically. The clamp board I and the clamp board II are connected through an articulated shaft. The articulated shaft is provided with a reset spring and the free state of the clamp board Iand the clamp board II is closing. A tail end of the clamp board I is threaded with a dismounting screw rod. One end of the dismounting screw rod extending towards the clamp board II is connected toa nut capable of rotating and sliding along the length direction of the clamp board II. The rotation direction of the nut is opposite to the thread direction of a thread hole connected with the dismounting screw rod in the clamp board I. According to the invention, the two arc-shaped clamping sheets clamp a lead for de-icing. The mounting is simplified, so that convenience is achieved and time andlabor are saved. A worker does not need to ride on the lead, so that operation safety is improved and the de-icing efficiency is greatly improved. In dismounting, a worker only needs to unscrew and rotate the dismounting screw rod in the reverse direction, so that the device is convenient in mounting and dismounting. By employing the nut and the thread hole in the clamp board having opposite rotation directions, release and clamping adjustment quickness is achieved.
Owner:GUIZHOU POWER GRID CO LTD

A line de-icing device for distribution network

ActiveCN109167319AFast meltDeicer applicationOverhead installationLiquid storage tankEngineering
A line de-icing device for distribution network Include material trolley, a liquid pump and a control switch for controlling the opening and closing of the liquid pump, A liquid storage tank and a liquid pump are arrange on that material trolley, a liquid deicer is store in the liquid storage tank, a pumping port of the liquid pump is communicated with the liquid deicer in the liquid storage tankthrough a water inlet pipe, a deicer mechanism is arrange at the upper end of an insulating operation rod, and a water outlet of the liquid pump is connected with the deicer mechanism through a wateroutlet pipe; The deicing mechanism comprises an L-shaped bracket arranged on the upper side of the insulated operating lever, a fixed shaft horizontally arranged on the outside of the L-shaped bracket, a cylinder rotatably arranged on the fixed shaft through bearings, a sponge cylinder wrapped on the outer surface of the cylinder, and a spraying module arranged on the outside of the L-shaped bracket and positioned directly above the sponge cylinder for spraying liquid deicer downward; The invention can uniformly apply the deicer on the ice covering of the distribution network line, the deicereffect is better, in addition, the deicer suitable for the deicer is provided, the freezing point is low, and the ice is melted in a short time.
Owner:STATE GRID CORP OF CHINA +1

Fast de-icing method for distribution network lines

InactiveCN107658778AIce melting achievedImproving the ability to resist large-scale rain, snow and freezing disastersOverhead installationApparatus for overhead lines/cablesEngineeringAlternating current
The invention relates to a fast de-icing method for distribution network lines. The fast de-icing method performs de-icing by adopting three de-icing units such as fixed large-capacity alternating-current de-icing equipment, vehicle-mounted generator set de-icing equipment and portable generator set de-icing equipment in allusion to different line lengths and line models, thereby being strong in feasibility and high in de-icing efficiency, can perform de-icing on hybrid lines in a distribution network and effectively improves the ability of the distribution network for resisting freezing rainand snow disasters.
Owner:STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +1

Deicing method and apparatus for connecting direct current to ice-covered circuit

ActiveCN106877265AUniform and stable temperatureUniform and stable temperature rangeOverhead installationCurrent rangeDc current
The invention discloses a deicing method and apparatus for connecting a direct current to an ice-covered circuit. The deicing method comprises the steps of determining a current range of the connected direct current according to the specification of the ice-covered circuit to obtain a peak current; connecting the direct current to the ice-covered circuit; increasing the current value of the direct current from zero to the current value of the peak current after a first time interval; maintaining the current value of the peak value for a second time interval, and then reducing the current value of the peak value in a third time interval to obtain a low-low current value; maintaining the low-low current value for a fourth time interval; judging whether the ice-covered circuit achieves an expected deicing degree or not, if not, not connecting the direct current; and if so, returning to execute the step of increasing the direct current from zero to the peak current after the first time interval. By adoption of the deicing method and apparatus disclosed by the invention, the deicing efficiency is effectively improved.
Owner:ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD

Railway tunnel vault deicing device

The invention provides a railway tunnel vault deicing device, and relates to the technical field of railway transportation. The railway tunnel vault deicing device comprises connecting parts, slidingdevices, deicing mechanisms, ice melting mechanisms and rolling wheels; the ice melting mechanisms are arranged at the top ends and the bottom ends of the connecting parts, cleaned broken ice is melted through the ice melting mechanisms, and the ice melting mechanisms are fixedly connected with the top ends and the bottom ends of the connecting parts; the deicing mechanisms are arranged between the connecting parts, and the deicing mechanisms are used for removing ice columns on a vault and ice on the surface of the vault; the left end and the right end of each deicing mechanism are fixedly connected with the corresponding connecting part; sliding devices are arranged at the bottom ends of the deicing mechanism so that the deicing mechanisms can be conveniently attached to the vault to remove ice; and the top ends of the sliding devices are in sliding connection with the top ends of the deicing mechanisms, the rolling wheels are arranged at the bottom ends of the sliding devices, and the rolling wheels penetrate through the bottom ends of the sliding devices to be rotationally connected with the bottom ends of the sliding devices. The problem that ice on the surface of the vault cannot be removed when the vault is deiced so as to cause secondary icing easily is solved.
Owner:刘展飞

Phytotron de-icing test platform for extra-high voltage divided conductors

The invention discloses a phytotron de-icing test platform for extra-high voltage divided conductors. The phytotron de-icing test platform comprises a master control device, a super-current generation device, a super-current measurement device, a first super-current soft connection body, a second super-current soft connection body, a first divided conductor conversion device, a second divided conductor conversion device, a first distributive stress regulation and detection device, a second distributive stress regulation and detection device, a full-insulated test pedestal, a distributive environment parameter control system, an icing and de-icing observation device and a high-span closed chamber. The phytotron de-icing test platform has the advantages of being capable of simulating actual de-icing features of the extra-high voltage divided conductors under various environment conditions, researching de-icing current-time curves of the extra-high voltage divided conductors under various environment conditions, simulating icing features of the extra-high voltage divided conductors under various environment conditions and researching icing mechanisms of circuits and simulating stress conditions of the extra-high voltage divided conductors in the icing process and the de-icing process to obtain stress change curves of the conductors.
Owner:STATE GRID CORP OF CHINA +2

Power transmission line tortuous serial ground wire ice melting method

InactiveCN106169729AReduce the cost of ice-melting retrofitReduce divisionOverhead installationEngineeringTower
The invention provides a power transmission line tortuous serial ground wire ice melting method. According to the method, three ground wires of a single loop in an ice melting segment are connected in series. The method specifically comprises the following steps: connecting a ground wire at the side of a dual loop to the head end of the first ground wire of the single loop at a first dual-loop branch tower, and at the same time, connecting head ends of the second ground wire and the third ground wire of the single loop; at a next dual-loop branch tower, tail ends of the first ground wire and the second ground wire of the loop are connected, and at the same time, the tail end of the third ground wire of the loop is connected with the ground wire at the side of the dual loop; and an electrical on-off point is arranged, an ice melting ground wire section is determined, a power supply anode is connected with one side of a ground wire on-off point through a lead wire of one phase, a power supply cathode is connected with the other side of the ground wire on-off point through a lead wire of the other phase, and thus tortuous serial connection is realized at a time. After a tortuous serial connection novel ice melting mode is employed, under the condition that it is ensured that the safety and the reliability of a power transmission line are not reduced, the ground wire ice melting problem can be effectively solved.
Owner:SOUTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP CORP

Icing monitoring and ice melting integrated system based on optical fiber grating and graphene thin film

The invention provides an icing monitoring and ice melting integrated system based on an optical fiber grating and graphene thin film, and relates to an icing monitoring and ice melting integrated system. The icing monitoring and ice melting integrated system aims at solving the problems in an existing ice testing and ice melting technology that the icing process and the ice melting process cannotbe monitored synchronously, an existing ice testing and ice melting device is limited by the environment, and the detection result is low in accuracy. The system is constituted by ice testing and icemelting composite film, an optical fiber grating sensing demodulator, a composite film input power source and a computer; the ice testing and ice melting composite film is constituted by an optical fiber Bragg grating sensing belt, the graphene thin film, upper layer polyethylene terephthalate film, lower layer polyethylene terephthalate film and a plastic casing pipe; the optical fiber Bragg grating sensing belt cascaded by multiple optical fiber Bragg sensors. The system can achieve the process of monitoring icing and ice melting synchronously and is flexible in arrangement, high in accuracy and high in efficiency.
Owner:HARBIN INST OF TECH

Method for melting ice and snow of transmission line

The invention discloses a method for melting ice and snow of a transmission line. Piezoresistors, a direct current ice and snow melting device and a plurality of short circuit wires are included, the piezoresistors are installed between a ground wire and a tower in a transmission line section that needs ice and snow melting and between the ground wire of the transmission line section that needs ice melting and a ground wire of another section, the short circuit wires are used for connecting the transmission line after a power cut and a ground wire of a line selection section, and two poles of the direct current ice and snow melting device are connected two phases of the transmission line. After ice melting work is completed, semi-insulating transformation facilities do not need to be dismantled, thereby facilitating ice melting operation of the next time, and thus the method for melting ice and snow of the transmission line is extremely low in cost, the workload of ice melting is greatly reduced, and the ice melting efficiency is improved.
Owner:STATE GRID XINJIANG ELECTRIC POWER COMPANY HAMI POWER SUPPLY +1

Power transmission line ice-melting decision method based on shortest path algorithm and 0/1 decision

ActiveCN105096003AQuick and efficient formulationQuick and efficient decisionForecastingDecision schemeDecision model
The invention discloses a power transmission line ice-melting decision method based on a shortest path algorithm and 0 / 1 decision. The method comprises the following steps: 1) dividing an icing line area; 2) calculating ice-melting time of each team for a single icing line; 3) calculating required time from each team to each substation of the icing area; 4) calculating required time from one substation to another substation in the same icing area of each team; 5) calculating the shortest ice-melting time of each team in all icing lines of the icing area; 6) establishing a power transmission line shortest ice-melting time decision-making model; and 7) calculating the shortest ice-melting time and outputting an ice-melting decision scheme. The power transmission line ice-melting decision method can quickly and effectively make a full-network icing line decision-making method, so that ice-melting time is reduced, and operability is high; and the problems that a power transmission line ice-melting decision is mainly made by human experience, and the decision-making time is long and risk of decision making is large under the conditions of multi-lines and complex working condition are solved.
Owner:STATE GRID CORP OF CHINA +2

Direct current deicing device for 10KV rural power grid distribution line

The invention discloses a direct current deicing device for a 10KV rural power grid distribution line. The direct current deicing device consists of two parts, namely a plurality of movable 380V alternating current power supplies and a direct current constant current heating power supply. The direct current output end of the direct current constant current heating power supply is connected to endpoints of two phase lines of a transmission line to be deiced through a cable. 380V alternating current power is rectified and filtered to obtain high-voltage direct current, the high-voltage direct current is transmitted to inverter circuits consisting of field effect transistors after being rectified and filtered, and is converted into high-frequency alternating current with an adjustable pulse width through main circuit units, and the high-frequency alternating current is stepped down through high-frequency transformers taking amorphous soft magnetic materials as cores, and then is rectified and converted into direct current heating power required by deicing in Schottky diodes. A control signal output by a control unit can quickly respond to the output of the main circuit units, and make a quick protection response to a failure. Ice and snow on a conducting wire are thawed by utilizing heat produced by the direct current resistance of the conducting wire when heavy current flows through the conducting wire, so that the direct current deicing of an iced 10KV rural power grid distribution line is realized.
Owner:CHENZHOU DONGTANG ELECTRIC EQUIP

Direct current ice-melting short-circuit control structure

The invention discloses a direct current ice-melting short-circuit control structure. The direct current ice-melting short-circuit control structure comprises an iron tower and three power transmission lines. The three transmission lines are suspended on the iron tower through insulator strings, and cable down leads are connected to the lower parts of the power transmission lines. Horizontal protective insulators are fixedly connected between the cable down leads and the iron tower, and a plurality of porcelain column insulators are fixed to the side edge of the iron tower. Detachable and foldable control levers are movably connected between the iron tower and the bottom ends of the cable down leads, a short-circuit wire fixed to the porcelain column insulators is connected between the three control levers, and a safety distance exists between the short-circuit wire and the iron tower. By arranging the three detachable, foldable and retractable control levers on the iron tower, the control levers are connected by the short-circuit wire, the purpose of being connected or disconnected with the power transmission lines in a short-circuit mode is achieved by the contraction or extension of the control levers, and a good use effect is obtained.
Owner:GUIZHOU POWER GRID CO LTD

Catenary ice-melting system with self-cycling energy

ActiveCN107215245AAchieve targeted ice meltingLow costOverhead installationTrolley linesPower flowRing network
The invention provides a catenary ice-melting system with self-cycling energy. The system comprises N groups of transformation mechanisms, each group of transformation mechanisms comprises a rectifying unit and an energy feed device, and N is an arbitrary integer greater than or equal to 1; the two sides of each rectifying unit are connected to a medium-voltage ring network and a direct-current catenary respectively, and the two sides of each energy feed device are connected to the medium-voltage ring network and the direct-current catenary respectively; in the first state, the rectifying unit of one transformation mechanism, an ice section to be melt of the direct-current catenary, the energy feed device of another transformation mechanism and a corresponding section of the medium-voltage ring network form an energy cycle, and the current value of the ice section to be melt is not lower than a critical ice-melting current value.
Owner:BEIJING QIANSIYU ELECTRIC

Alternating-current ice melting device and method for continuously adjusting voltage frequency of multiple branches of distribution network

The invention discloses an alternating-current ice melting device and method for continuously adjusting the voltage frequency of multiple branches of a distribution network. The alternating-current ice melting device comprises a B2B-MMC converter; the input end of the B2B-MMC converter is connected with an AC bus end; the output end of the B2B-MMC converter is connected with an ice melting transformer; and the output end of the deicing transformer is connected with a line to be deiced. The problems that at the present stage, the number of branch breakers of a distribution network line is large, and direct-current ice melting is not easy to carry out are solved, and the ice melting efficiency of the distribution network line is improved.
Owner:GUIZHOU POWER GRID CO LTD

Deicing system for road surface

InactiveCN108505415AAffect travelAffect ups and downsPaving detailsRoad surfaceEngineering
The invention discloses a deicing system for a road surface. The deicing system comprises a plurality of thermodynamic pipes which are pre-buried in a ground road, an inlet pipe communicated with inlet ends of all the thermodynamic pipes, a water outlet pipe communicated with outlet ends of all the thermodynamic pipes and a heat supply source communicated with the inlet pipe; a temperature controlswitch is further mounted between the water outlet pipe and the thermodynamic pipes. According to the deicing system for the road surface, provided by the invention, the road deicing efficiency is improved.
Owner:CHINA FIRST METALLURGICAL GROUP

External ice melting ice storage device capable of automatically adjusting air blowing amount

The invention relates to an external melting ice storage device capable of automatically adjusting the air blowing amount. The device comprises an ice storage tank, the ice storage tank comprises an air blowing assembly and a liquid level sensor, the air blowing assembly comprises an air transmission main pipe and air transmission branch pipes, the air transmission main pipe is connected with an air compressor, the air compressor comprises an air return pipe, the air return pipe is provided with a pressure sensor, and the air compressor is connected with a frequency converter. The device has the advantages that the liquid level information in the ice storage tank is collected in real time through the liquid level sensor, the pressure change in the air return pipe is collected in real time through the pressure sensor arranged on the air return pipe, the frequency converter receives the information of the liquid level sensor and the pressure sensor at the same time, the rotating speed of the air compressor is comprehensively controlled according to the liquid level height of ice water and the pressure change of the air return pipe, and therefore the air blowing amount of the air blowing assembly is automatically adjusted so as to guarantee that air with enough air amount and certain pressure is blown into the ice water under different ice storage amounts, certain disturbance is formed to the ice water, the ice melting efficiency is improved, and the ice melting time is shortened.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JINHUA POWER SUPPLY CO +4

Insulator surface online monitoring device

The invention provides an insulator surface online monitoring device, and relates to the technical field of power transmission line cleaning equipment. The insulator surface online monitoring device comprises a movable carrier, a storage bin arranged on the movable carrier, a suspension mechanism arranged on the storage bin, a spraying mechanism arranged on the movable carrier, a monitoring mechanism arranged on the movable carrier and used for monitoring insulators, and a control mechanism arranged on the movable carrier and used for controlling the movable carrier, the suspension mechanism,the monitoring mechanism and the spraying mechanism. The surfaces of the insulators can be monitored one by one in a power transmission line inspection mode in cold weather, and the surfaces of the insulators can be cleaned and monitored while ice melting is carried out on a line; and in addition, an ice melting agent suitable for an ice melting device is provided, has low freezing point, and is high in ice melting speed within a short time, remarkable in ice melting effect and small in damage to carbon steel and plants.
Owner:STATE GRID CORP OF CHINA +1

High-power fiber laser ice melting system

The embodiment of the invention discloses a high-power fiber laser ice melting system, which is applied to ice melting on an overhead line, and is characterized by comprising a laser emitting module,a monitoring module, a distance measurement module, an optical zooming module, a tracking and aiming module and a turntable, wherein the laser emitting module is used for melting the ice coating the overhead line; the monitoring module is used for obtaining monitoring data related to the overhead line at a far end in real time; the distance measurement module is used for generating a distance parameter according to the monitoring data; the optical zooming module is used for adjusting the focal length of the laser emitted by the laser emitting module; the tracking and aiming module is used foradjusting the direction of the laser emitted by the laser emitting module in real time; and the turntable is used for changing the irradiation direction and position of the laser. Through the ice melting system provided by the invention, the ice melting efficiency can be greatly improved, the ice melting cost is reduced, and meanwhile, the working risk of an electric worker is greatly reduced.
Owner:INFORMATION & COMMNUNICATION BRANCH STATE GRID JIANGXI ELECTRIC POWER CO +2

Direct current deicing method of extra-high voltage ground wires

The invention discloses a direct current deicing method of extra-high voltage ground wires, comprising following steps: carrying out semi-insulating modification to to-be-deiced region ground wires: connecting the to-be-deiced ground wires and a lead wire; connecting a direct current deicing device and the lead wire; starting the direct current deicing device to deice the ice covered ground wires in the region; after the covering ice on the ground wires in the region falls off completely, disconnecting and removing the direct current deicing device, thus finishing deicing the ground wires. According to the direct current deicing method of the invention, the semi-insulating modification is carried out to a target deicing line; the extra-high voltage ground wires are kept insulated from an iron tower in deicing; the insulation bridge connection problem in serious ice coverage is effectively avoided; the function of overvoltage protection of the ground wires is kept; according to the invention, modification is carried out for only once in the deicing processing; any other operation is unnecessary; the semi-insulating modification facility is unnecessarily removed after finishing the deicing job; the deicing operation of the next time is convenient; the cost is very low; the deicing workload is greatly reduced; and the deicing efficiency is improved.
Owner:STATE GRID CORP OF CHINA +2

Evaporator deicing device

The embodiment of the invention discloses an evaporator deicing device comprising a power source, a heating element connected to the power source and a processor connected to the heating element to beused for controlling the working time length of the heating element. The heating element is a thick film heater; and as the thick film heater has the good thermal conversion efficiency, compared withheating elements such as electric heating tubes or electric heating wires, the thick film heater can achieve the same deicing effect at the lower surface temperature, and the thick film heater can bearranged on a heat dissipating fin of an evaporator to be used for heating the heat dissipating fin for deicing. Since the thick film heater is in direct contact with the heat dissipating fin, generated heat can be transmitted to an icing portion to the maximum extent for conduction and heat transferring, the evaporator deicing efficiency is greatly improved, the good deicing effect can be achieved in a conduction heat transferring manner, and the condition of incomplete deicing is effectively reduced.
Owner:ZHUZHOU LEEDINK ELECTRONICS TECH CO LTD

Thermal insulation de-icing barrel for vehicular water dispenser

The invention discloses a thermal insulation de-icing barrel for a vehicular water dispenser. The thermal insulation de-icing barrel comprises a water storage barrel, a water pipe, an air pipe, an electric heating wire and a circuit mainboard. The water pipe reaches the bottom of the water storage barrel, the air pipe is positioned at the top of the water storage barrel, and the outer end of the air pipe is communicated with the outside. The electric heating wire penetrates through the water pipe to directly reach the bottom of the pipe, is then bent from the bottom of the pipe to return to the top of the water storage barrel and finally penetrates outwards from the side wall of the water pipe to enter the air pipe. The circuit mainboard is arranged in a barrel cover and provided with two power interfaces and two transmission interfaces, and power lines and transmission lines are connected to the power interfaces and the transmission interfaces respectively. A high water level probe, a low water level probe, a water quality monitor, a water level common terminal and a barrel internal temperature sensor are arranged in the water storage barrel, a barrel external temperature sensor is arranged outside the water storage barrel, and the high water level probe, the low water level probe, the water quality monitor, the water level common terminal, the barrel internal temperature sensor and the barrel external temperature sensor are connected with the circuit mainboard through corresponding interfaces of the circuit mainboard. The water storage barrel is high in de-icing efficiency and great in thermal insulation effect, ice cubes can be added into the barrel in summer to realize supplying of icy water, and the electric heating wire can be electrified in summer to quickly deice so as to realize supplying of hot water through heating with the water dispenser.
Owner:罗红光

Heat-collecting de-icing device and method for ice-coating power transformation device

The invention discloses a heat-collecting de-icing device and method for an ice-coating power transformation device. The heat-collecting de-icing device comprises a plurality of light-gathering units; each light-gathering unit comprises a parabolic reflector and an infrared lamp; the infrared lamp is arranged on the focus of the parabolic reflector; light of the infrared lamp is reflected by the parabolic reflector to form a collimated light beam; several light-gathering units are configured in a way that several light-gathering units are installed on the internal surface of an internal fixed paraboloid dispersedly, the light beam emitted by each light-gathering unit is perpendicular to the tangent plane of the internal fixed paraboloid on the corresponding mounting point; the focal length b of the internal fixed paraboloid is larger than the safe distance when ice is melt; the ice-coating power transformation device is arranged on the focus of the internal fixed paraboloid; and therefore light of the light-gathering units are gathered to the focus of the internal fixed paraboloid, and safe ice melting can be carried out to the ice-coating power transformation device arranged on the focus. According to the invention, energy loss can be greatly reduced, and the ice-melting efficiency is improved.
Owner:STATE GRID HUNAN ELECTRIC POWER +2

Wind power blade deicing system and method based on unmanned aerial vehicle

The invention discloses a wind power blade deicing system and method based on an unmanned aerial vehicle. The unmanned aerial vehicle can be flexibly operated, and the wind power blade is comprehensively shot through the infrared camera, so that the freezing point is found. An RTK positioning system accurately positions and records coordinate information of a freezing point of the wind power blade, the omnidirectional radar system can control the unmanned aerial vehicle to hover near the freezing point, the safe distance between the unmanned aerial vehicle and the wind power blade is 2.5 m, and damage to the wind power blade due to shaking of the unmanned aerial vehicle is avoided; the steering engine can adjust the directions of the sprayer and the nozzle to ensure the spraying accuracy; An FPV camera shoots the ice melting and removing process in the whole process and transmits the image to the operating handle screen in real time, so that the ice removing and cleaning process is timely and efficient; A ground system can provide power guarantee and signal guarantee for the mooring unmanned aerial vehicle, and the unmanned aerial vehicle can execute a deicing task in a high-altitude long-endurance and high-response mode.
Owner:XIAN THERMAL POWER RES INST CO LTD

Environment-friendly ice melting agent prepared by using waste acetic acid produced in dimethyl phthalate production and preparation method thereof

ActiveCN103865485AHigh degree of biodegradabilityGood dispersantOther chemical processesLiquid productSaponification
The invention discloses an environment-friendly ice melting agent prepared by using waste acetic acid produced in dimethyl phthalate production and a preparation method thereof. The environment-friendly ice melting agent is a liquid product, wherein the total mass percent of acetate is 10-40%, the total mass percent of sodium dihydrogen phosphate is 0.05-1%, the total mass percent of sodium silicate is 0.05-1%, the total mass percent of sodium tartrate is 0.01-0.05%, and the 0.001-0.5wt% pigment can be added in the product. The production process is simple and mainly comprises strong alkali saponification and activated carbon adsorption treatment, the corrosion inhibition component is compounded to realize the comprehensive utilization of waste acetic acid which is hard to treat. The environment-friendly ice melting agent prepared by the invention is free from extraneous odor and low in ice point, the ice melting capacity is more than 150% of that of sodium chloride, the corrosivity to the steel is less than 10% of sodium chloride, and the ice melting agent basically cannot corrode the concrete, the plurality of indexes are superior than those of the common acetate type environment-friendly ice melting product CMA at present.
Owner:HUNAN XUETIAN FINE CHEM IND

Metal pipeline deicing device with rapid ice body melting and dredging functions

The invention relates to the technical field of metal pipelines, and discloses a metal pipeline deicing device with quick ice body melting and dredging functions. The metal pipeline deicing device comprises a functional mounting part, a functional cavity is formed in the inner wall of the functional mounting part, an ice breaking and drilling device is fixedly mounted in the functional cavity, the ice breaking and drilling device comprises a power motor, a power shaft is installed on the power motor in a power mode, a porous circular plate is fixedly installed at the tail end of the power shaft, liquid through groove holes are formed in the porous circular plate in an annular array mode, and the liquid through groove holes are used for guiding in liquid. According to the metal pipeline deicing device with the rapid ice body melting and dredging functions, through the arrangement of an internal deicing system and an external deicing system, after an iced pipeline is installed and fixed, hot water is introduced into the ice breaking and drilling device to enable the ice breaking and drilling device to extend, in the process, the ice breaking and drilling device is driven to rotate at a high speed, a drilling end at the bottom of the ice breaking and drilling device carries out ice breaking work, and therefore, a built-in hydraulic telescopic rod of the ice breaking and drilling device penetrates through the ice body of the pipeline in cooperation with stretching and extending.
Owner:李彦侠

Water-cooling box type movable ice melting device

The invention discloses a water-cooling box type mobile ice melting device which comprises a box body, an air cooler, power electronic rectification equipment, protection equipment and water cooling equipment. The box body is divided into a first cabin body, a second cabin body and a third cabin body which are connected in sequence and independent of one another; the air cooler is arranged outsidethe box body; the power electronic rectification equipment is arranged in the first cabin body; the protection equipment is arranged in the second cabin body; the water cooling equipment is arrangedin the third cabin body and comprises a water cooling body, a first pipe body, a second pipe body, a third pipe body and a fourth pipe body, the first pipe body, the second pipe body, the third pipe body and the fourth pipe body are connected with the water cooling body, and the first pipe body and the second pipe body penetrate through the second cabin body and then are led to a thyristor siliconstack in the power electronic rectification equipment; and the third pipe body and the fourth pipe body respectively penetrate through the box body and are led to an air cooler. Compared with a conventional air-cooled movable ice melting device, the movable ice melting device has the advantages of being low in noise, high in cooling efficiency, small in influence of the external environment and the like, and miniaturization of the movable ice melting device can be achieved.
Owner:CHANGZHOU BORI ELECTRIC POWER AUTOMATION EQUIP +2
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