53results about How to "Good ice melting effect" patented technology

The invention provides a salt-storage sustained-release snow-melt deicer and a preparation method thereof. The method comprises the following steps: firstly, respectively preparing an anticoagulationchloride saturated solution and a nano-silicon dioxide modified diatomite suspension; then, adding the anticoagulation chloride saturated solution into the nano-silicon dioxide modified diatomite suspension, stirring, filtering in vacuum, drying and grinding to obtain sustained-release inorganic salt; preparing a polymer monomer solution, sequentially adding the sustained-release inorganic salt, isopropyl alcohol or propylene glycol monomethyl ether solution into a flask, putting the flask in an oil bath, and uniformly stirring, adding the polymer monomer solution and a mixed solution of KH570and gAIBN, keeping on stirring, reducing the temperature, adding triethylamine into the flask, stirring, and adding water to obtain the salt-storage sustained-release snow-melt deicer. According to the salt-storage sustained-release snow-melt deicer, snow-melt substances are not limited by temperature-control molecules, and have long release time and relatively high ice melting capacity.

The invention discloses a preparation method of an ice melting agent for transformer substations. The method comprises the following steps: 1) in the stirring state, sequentially adding 26-34 wt% of propanediol and 46-52 wt% of diethylene glycol into a container, and sufficiently dissolving by continuing stirring; 2) in the stirring state, sequentially adding 1-3 wt% of triethanolamine and 2-4 wt% of anhydrous sodium carbonate, stirring and sufficiently dissolving; 3) in the stirring state, adding 13-18 wt% of deionized water into the completely dissolved solution until the pH value of the solution is 6.5-7.2; 4) after stirring for 30 minutes, standing for 4 hours; and 5) finally, filtering with a 1-micrometer filter, and subpackaging. By adopting the nano technique, the pH value of the ice melting agent for transformer substations is approximate to 7, and thus, the ice melting agent is not corrosive to power equipment and does not have any toxic effect on the environment.

The invention discloses a heat-pipe type ice-storing ice-melting cold-accumulating device and an ice-storing cold-accumulating air conditioner. The heat-pipe type ice-storing ice-melting cold-accumulating device is characterized in that an ice-storing box and a secondary refrigerant box of the heat-pipe type ice-storing ice-melting cold-accumulating device are vertically arranged in a box body upand down, the secondary refrigerant box is provided with a liquid inlet and a liquid outlet, and the ice-storing box is filled with water; multiple heat pipes pass through a partition plate so as to be evenly arranged in the ice-storing box and the secondary refrigerant box, and heat transfer materials are arranged in the ice-storing box and the secondary refrigerant box; a corrugated plate or foamed metal is utilized as the heat transfer materials, a heat pipe is a cylindrical hollow circular pipe with two enclosed ends, and the internal surface of the hollow circular pipe is provided with multiple trapezoidal groove channels; and the depth of each trapezoidal groove is 0.5-1mm, and the hollow inner diameter of the heat pipe is 25-75mm. Compared with the prior art, the device provided bythe invention has the advantages that the heat transfer efficiency is improved, and the flow resistance of the secondary refrigerant is small; and the heat transfer effect of the added corrugated plate or the foamed metal is improved; and the liquid in an ice-storing section exists in a brash ice mode, the phenomenon of overlong ice melting time is avoided, the corrugated plate or the foamed metal is utilized to improve the heat transfer efficiency.

The present invention relates to an environment-friendly snow melting agent prepared from alkaline residues and a preparation method therefor. The environment-friendly snow melting agent comprises a product obtained by a reaction which takes the alkaline residues and acid as raw materials, and preferably comprises one or more of urea, sodium nitrite and magnesium acetate. The preparation method for the product comprises: under a condition of stirring, adding the acid to a reaction tank with the alkaline residues and performing reaction; adjusting the pH value of a reaction system to 7-8 by use of the alkali residues or the acid so as to obtain suspended reaction liquor, and filtering the suspended reaction liquor to obtain the product. The present invention firstly discloses the environment-friendly snow melting agent which is prepared by taking the alkali residues and the acid as raw materials, solves the alkali residue treatment problem, improves the economic value of the alkali residues, and obtains a byproduct carbon dioxide. The method disclosed by the invention is simple and easy to implement. The environment-friendly snow melting agent prepared by the method is good in effect and, green and environmentally friendly; and the production cost of the snow melting agent is obviously reduced.

The invention discloses an environment-friendly efficient ice-melting coating material and a preparation method and an application thereof and aims to solve the technical problem that the deicing costis high, and a deicer pollutes the environment, harms roads and the environment and cannot play roles effectively durably. The coating is prepared from the following raw materials: a deicer, a bonding material, a hydrophobic coating material, a hydrophilic coating material, a hydrophobic plasticizer, a hydrophilic plasticizer, glycerinum, an antisticking agent, talc powder, filler, a semi-fortifier, a flatting agent, a coupling reagent, a defoamer, a pore-foaming agent and hydrophobic fumed silica. The invention further provides a preparation method of the coating material. The coating material is applied to deicing traffic roads. The environment-friendly efficient ice-melting coating material is free of harmful ions, does not lead to corrosion and damage the environment during deicing durably, and has relatively good curing action to the pavement. The raw materials are wide in source, low in cost, simple in production process and easy to operate, and can be popularized and applied ona large scale. A lot of manpower and material resources are reduced, and the environment-friendly efficient ice-melting coating material has important economical value.

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.

The invention relates to a radar antenna reflection net capable of deicing and melting snow rapidly. The radar antenna reflection net capable of deicing and melting the snow rapidly comprises heating cables, multiple stainless steel metal wires and multiple stainless steel metal strips. The stainless steel metal strips form a longitudinal frame of the radar antenna reflection net, the heating cables transversely penetrate into all the stainless metal strips of the longitudinal frame from one side of the longitudinal frame and are turned back and penetrate into the all the stainless metal strips of the longitudinal frame when reaching the other side of the longitudinal frame, and followed by reciprocating until the heating cables are evenly arranged in the longitudinal frame, one stainless metal wire is arranged between two adjacent heating cables, and the metal wires penetrate through all the stainless steel metal strips and are fixed. According to the radar antenna reflection net capable of deicing and melting the snow rapidly, the heating cables are fixed in the reflection net and make surface contact with the stainless steel metal strips, the heat transmission path between the heating cables and the reflection net is shortened greatly, the surface temperature of the whole reflection net is improved as much as possible, the deicing effect of the reflection net is improved effectively, and the radar antenna reflection net capable of deicing and melting the snow rapidly has quite wide application prospects.

The invention relates to the technical field of ice melting for power grids, and discloses a diode rectifier type direct current ice melting device and method with finely adjustable output voltage. Fine adjustment of direct current output voltage and current of the diode rectifier type direct current ice melting device within a relatively large range is realized by using a few of transformer gearpositions. The device comprises a coarse gear position adjustment transformer, a high-capacity rectifier, a fine gear position adjustment transformer and a low-capacity rectifier. The primary side ofthe coarse gear position adjustment transformer is connected with the power grid, and the secondary side of the coarse gear position adjustment transformer is provided with at least two gear positionswith relatively large span lengths; an output port is connected with the high-capacity rectifier; the primary side of the fine gear position adjustment transformer is connected with the power grid, and the secondary side of the fine gear position adjustment transformer is provided with at least two adjustable gear positions with relatively narrow span lengths; an output port of the fine gear position adjustment transformer is connected with the low-capacity rectifier; after the direct-current output sides of the high-capacity rectifier and the low-capacity rectifier are connected in series, atotal ice melting voltage is output. The diode rectifier type direct current ice melting device realizes fine adjustment of the ice melting output voltage of the diode rectifier type direct current ice melting device within a relatively large range only by using a few of transformer gear positions, and is relatively low in cost and high in ice melting performance.

The invention relates to an ice-melting method with voltage reduction, current increase and short circuit by using series connection of two transformers. In the ice-melting method, a high-voltage transformer (2) is electrically connected in series with a high-voltage transformer (3) according to voltage reduction functions of high-voltage transformers, an initial power source (1) is connected to a high-voltage side of the high-voltage transformer (2), and a low-voltage side of the high-voltage transformer (3) is electrically connected with an ice-coated wire (6) through an electric switch (5). According to conditions of the ice-coated wire and parameters of ice-melting equipment, a three-phase short-circuit connection point (7) of the ice-coated wire (6) is selected and an earthing knife-switch (8) is mounted; after the voltage of the initial power source (1) is reduced by the high-voltage transformer (2), the voltage of the initial power source (1) is further reduced by the high-voltage transformer (3) to acquire an ice-melting power source (4) with low voltage and high current intensity; and then the electric switch (5) is switched on, and the ice-melting power source (4) can melt the ice on the ice-coated wire (6).

The invention provides a salt-storage slow-release snow-melting and deicing agent and a preparation method thereof, comprising the following steps: firstly preparing a saturated solution of anti-coagulation glacial chloride salt and a suspension of diatomite modified by nano-silica, and then adding the anti-freeze The saturated solution of glacial chloride salt is added dropwise to the diatomite suspension modified by nano-silica, stirred, vacuum filtered, dried, and pulverized to obtain a slow-release inorganic salt; the polymer monomer solution is then prepared, and finally the slow-release Release inorganic salt, isopropanol or propylene glycol methyl ether solution into the flask, put the flask in an oil bath and stir evenly, then add the mixed solution of polymer monomer solution, KH570 and gAIBN to it, continue stirring, and lower the temperature , and then add triethylamine into the flask, stir, and then add water to obtain the salt-storage slow-release snow-melting and deicing agent. The snow-melting substance in the salt-storage slow-release snow-melting and deicing agent prepared by the invention is not limited by temperature-controlling molecules, and the snow-melting substance releases for a long time and has a high melting ice amount.

The invention provides a live-line maintenance robot with a vibration damper, and relates to the technical field of vibration damper maintenance equipment. The robot comprises a moving carrying tool,a storage cabin disposed on the moving carrying tool, a suspension mechanism which is disposed on the storage cabin, a spraying mechanism which is disposed on the moving carrying tool, a maintenance mechanism which is disposed on the moving carrying tool and is used for the maintenance of the vibration damper, an ice shoveling mechanism which is disposed at the rear part of the spraying mechanism,and a control mechanism which is disposed on the moving carrying tool and is used for controlling the moving carrying tool, the suspension mechanism, the spraying mechanism, the ice shoveling mechanism and the maintenance mechanism. The robot not only can achieve the maintenance of the vibration damper on a power transmission line, but also can achieve the quick melting of the ice on the power transmission line in winter, is remarkable in ice removing effect, is small in damage to carbon steel and plants, and can achieve the quick removing of the melted ice so as to avoid the impact on the subsequent maintenance.

The invention relates to a prefabricated cabin and a cabin roof thereof. The prefabricated cabin includes a cabin body and the cabin roof located above the cabin body, the cabin roof includes a cabinroof skeleton, a cabin roof cover fixed to the upper side surface of the cabin roof skeleton and an insulation board fixed to the lower side surface of the cabin roof skeleton, and a heating device isarranged in an interlayer space between the cabin roof cover and the insulation board. The heating device is arranged in the interlayer space between the cabin roof and the insulation board to heat the cabin roof cover, the temperature of the cabin roof cover is increased after the cabin roof cover is heated, and the heat is transferred to ice and snow on the cabin roof cover so that the ice andsnow melts away, so that the ice and snow is prevented from continuously accumulating on the cabin roof cover; and the operation process requires no labor, the melting effect is good, and use is convenient.

The invention discloses an unfreezing device. The unfreezing device comprises a cylindrical barrel (1), a water storage box (2) is connected to the side face of the cylindrical barrel (1) and connected with a water suction pump (4) through a hose (3), the lower end of the water suction pump (4) is connected with a spraying device (5), a metal partitioning layer with holes is arranged inside the barrel (1), and a water receiving groove is formed below the metal partitioning layer and communicated with the water storage box (2) through a pipeline. Water below indoor temperature is used for unfreezing, in this way, the original nutrient and flavor of foods are kept, and compared with a traditional warm water soaking unfreezing method, fluidity is good because water is sprayed constantly, and then the ice-melting effect is better.

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.

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.

The invention discloses an anti-pollution-flashover insulator, which comprises an insulator main-body and a coating applied on the surface of the main body. The coating is a nano-fluorocarbon coating, which comprises the following ingredients (by weight): 5-10% of nano-silica, 5-10% of a cross-linking agent, 8-14% of an organometallic compound and the rest of fluorocarbon coating. The inner and outer surfaces of the anti-pollution-flashover insulator are fully covered with the nano-fluorocarbon coating. As the nano-fluorocarbon coating has good film-forming property, strong covering power and hardness and firm and reliable bond property, the anti-pollution-flashover insulator is endowed with excellent hydrophobic property, mechanical property, resistance to soiling and ice melting performance. By the use of the anti-pollution-flashover insulator, probability of pollution flashover is remarkably reduced, and safe operation of power network is guaranteed.

A short-circuit ice melting method by means of raising voltage and current from zero for a small hydropower station includes that an electric connection mode of a step-up transformer of the small hydropower station is changed, so that the step-up transformer can be used as a step-down transformer; the step-down transformer is combined with a generator, which has a function of raising the current from zero, of the small hydropower station; the generator (1) of the small hydropower station is electrically connected with a high-voltage end of the step-down transformer (2); one end of an iced conducting wire (3) is electrically connected with a low-voltage end of the step-down transformer (2); the other end of the iced conducting wire (1) is subjected to three-phase short circuit to form a three-phase short-circuit point (4); and a grounding knife switch (5) is arranged at the other end of the iced conducting wire (3). The short-circuit ice melting method has the advantages that a control mode of an excitation system of the generator (1) of the small hydropower station is set as a manual fixed-current mode, a magnetic blow-out switch of the generator (1) of the small hydropower station is switched on to manually excite the generator, ice-melting current of the iced conducting wire (3) is gradually increased, and accordingly the purpose of melting ice is achieved.

The invention discloses a heat-pipe type ice-storing ice-melting cold-accumulating device and an ice-storing cold-accumulating air conditioner. The heat-pipe type ice-storing ice-melting cold-accumulating device is characterized in that an ice-storing box and a secondary refrigerant box of the heat-pipe type ice-storing ice-melting cold-accumulating device are vertically arranged in a box body up and down, the secondary refrigerant box is provided with a liquid inlet and a liquid outlet, and the ice-storing box is filled with water; multiple heat pipes pass through a partition plate so as to be evenly arranged in the ice-storing box and the secondary refrigerant box, and heat transfer materials are arranged in the ice-storing box and the secondary refrigerant box; a corrugated plate or foamed metal is utilized as the heat transfer materials, a heat pipe is a cylindrical hollow circular pipe with two enclosed ends, and the internal surface of the hollow circular pipe is provided with multiple trapezoidal groove channels; and the depth of each trapezoidal groove is 0.5-1mm, and the hollow inner diameter of the heat pipe is 25-75mm. Compared with the prior art, the device provided by the invention has the advantages that the heat transfer efficiency is improved, and the flow resistance of the secondary refrigerant is small; and the heat transfer effect of the added corrugated plate or the foamed metal is improved; and the liquid in an ice-storing section exists in a brash ice mode, the phenomenon of overlong ice melting time is avoided, the corrugated plate or the foamed metal is utilized to improve the heat transfer efficiency.

The invention discloses a flexible ground wire ice melting wiring apparatus which comprises a contact, an insulating rod, an over-current wire and a rotary clamping head, wherein the contact is installed on the head end portion of the insulating rod, the over-current wire is connected on the contact, and the rotary clamping head is installed on the tail portion of the insulating rod. The contact clamps a lead, the rotary clamping head fixes the insulating rod on an iron tower, and the other end of the over-current wire is connected with a ground wire. Current flows to the ground wire after passing through the lead, the contact and the over-current wire, and heat generated by the ground wire current melts ice. The flexible ground wire ice melting wiring apparatus is reasonable in structure design and is small. A construction worker can conveniently carry the flexible ground wire ice melting wiring apparatus to climb up to a tower, and install and dismount the flexible ground wire ice melting wiring apparatus, ice on the ground wire of an overhead transmission line can be effectively melted, and tripping can not easily occur.

The electric pole hot air deicing device comprises a fuel oil warm air blower and an air inlet pipe, an air outlet of the fuel oil warm air blower is connected with one end of the air inlet pipe, the other end of the air inlet pipe is connected to an air inlet in the bottom end of an electric pole, and air outlets are formed in the periphery of the top end of the electric pole. The electric pole hollow area is small in space, high in heating efficiency and not affected by the external environment. The electric pole is heated from the inside, the surface temperature of the electric pole is increased, the contact surface of ice and the electric pole is melted and falls off, the ice melting effect is better, in addition, heating is continuously conducted after ice melting is finished, and surface accumulated water is rapidly evaporated. When a worker climbs the pole to work, the electric pole can be maintained at a certain comfortable temperature by adjusting the output power of the ice melting device, and the worker is warmed by contacting with the pole body, so that the working environment is improved. Meanwhile, the situation that the friction capacity is reduced due to the fact that the pole climber is hardened at low temperature in winter due to the fact that the friction material is rubber can be improved.

The invention discloses a low-chlorine environment-friendly snow melt agent without salt dust and a method for preparing the low-chlorine environment-friendly snow melt agent. The low-chlorine environment-friendly snow melt agent and the method have the advantages that the low-chlorine environment-friendly snow melt agent is in the shape of yellowish-brown particles, the particle size of the low-chlorine environment-friendly snow melt agent is 0.3-0.6 cm, the chlorine content of the low-chlorine environment-friendly snow melt agent is lower than the chlorine content of common snow melt agentsby 15% or above, environmental hazards of the low-chlorine environment-friendly snow melt agent can be reduced by 30%-40%, the low-chlorine environment-friendly snow melt agent contains little chloride, and accordingly destruction and pollution on soil, plants and underground water resources due to the low-chlorine environment-friendly snow melt agent are far lower than destruction and pollution due to the common snow melt agents; earth surfaces are free of white salt spots after snow removal operation is carried out, salt dust formation can be effectively inhibited, and secondary pollution can be prevented.

The invention discloses a self-ice-melting asphalt mixture additive and a preparation process. Waste plastic and chloride salt or acetate salt are dissolved in a range of 160 DEG C to 350 DEG C afterbeing evenly mixed according to a certain mass ratio, and are extruded or extruded, then the mixture is processed into 5 to 40-mesh plastic sustained-release pellets through an extrusion molding device or an injection molding device; the plastic sustained-release pellets with the same particle size are uniformly mixed with rubber pellets according to a certain mass ratio to obtain the self-ice-melting asphalt mixture additive; when road pavement asphalt is produced, the self-ice-melting asphalt mixture additive replaces a powder filler by equal amounts, and an asphalt road surface added with the self-ice-melting asphalt mixture slowly release to melt ice under action of wheel pressure of automobiles. The ice melting effect is good and the service life is long.

The invention provides a removing device for thin ice on the road surface. The removing device comprises a plurality of burners and a plurality of fans, wherein the burners are used for igniting fuel and spraying generated heat energy to an ice surface; the fans are used for conveying hot air at the upper part of the burners to the ice surface; each burner comprises a fuel connecting seat for introducing fuel, a spray head pipe for mixing fuel gas with air and forming low pressure therein and a spray nozzle; one end of each fuel connecting seat is connected with a first end of the corresponding spray head pipe; a second end of each spray head pipe is connected with the corresponding spray nozzle; a plurality of air through holes for introducing air into each spray head pipe are formed in the side wall of the first end of the spray head pipe; and an acute angle of 15 to 45DEG C is formed between each spray head pipe and the ice surface. According to the removing device for the thin ice on the road surface, provided by the invention, the multi-row and multi-hole burners are adopted to burn coal gas to generate heat for melting an ice layer, action area is increased, and sufficient burning of liquefied gas is facilitated, strong power and far jet distance are enabled to be reached, and the working efficiency and the quality are improved.

The invention provides a live-line maintenance robot with a vibration damper, and relates to the technical field of vibration damper maintenance equipment. The robot comprises a moving carrying tool,a storage cabin disposed on the moving carrying tool, a suspension mechanism which is disposed on the storage cabin, a spraying mechanism which is disposed on the moving carrying tool, a maintenance mechanism which is disposed on the moving carrying tool and is used for the maintenance of the vibration damper, an ice shoveling mechanism which is disposed at the rear part of the spraying mechanism,and a control mechanism which is disposed on the moving carrying tool and is used for controlling the moving carrying tool, the suspension mechanism, the spraying mechanism, the ice shoveling mechanism and the maintenance mechanism. The robot not only can achieve the maintenance of the vibration damper on a power transmission line, but also can achieve the quick melting of the ice on the power transmission line in winter, is remarkable in ice removing effect, is small in damage to carbon steel and plants, and can achieve the quick removing of the melted ice so as to avoid the impact on the subsequent maintenance.

The invention discloses a wind power blade ice-melting and ice-inhibiting agent based on exothermic reaction and a preparation method thereof. The ice-melting and ice-inhibiting agent comprises a solid component A and a liquid component B. The solid component A comprises sodium hydroxide powder and activated carbon; the liquid component B comprises acetic acid and ethylene glycol (glycerol). Sodium hydroxide and acetic acid are mainly utilized to react to generate sodium acetate and water, and a large amount of neutralization heat is released; wherein the reaction product sodium acetate has a good ice melting effect, the freezing point is reduced, the ice melting efficiency is improved, and the sodium acetate is small in erosion and corrosivity to soil and metal, easy to biodegrade, free of damage to a surface coating of the wind turbine blade and friendly to the surrounding environment.

The present invention relates to a kind of radar antenna reflective net for deicing and snow melting rapidly, comprising heating cable, several stainless steel metal wires and several stainless steel metal strips; One side of the frame crosswise penetrates each stainless steel metal strip of the longitudinal frame, and when reaching the other side of the longitudinal frame, reversely turns back and penetrates each stainless steel metal strip of the longitudinal frame, and reciprocates in sequence until the longitudinal frame evenly arranges the heating cables. The wiring is routed, and a stainless steel wire is arranged between two adjacent heating cables, and the metal wire is fixed through each stainless steel metal strip; the heating cable of the present invention is fixed in the reflective net and is in contact with the stainless steel metal strip surface, which greatly reduces the The heat transfer path between the heating cable and the reflective net increases the surface temperature of the entire reflective net as much as possible, which significantly improves the deicing effect of the reflective net. This device has a very broad application prospect.

The invention discloses an environmentally friendly and efficient ice-melting coating material and its preparation method and application, aiming to solve the problems of high cost of deicing, environmental pollution caused by deicing agents, harm to roads and the environment, and the technology that cannot function effectively for a long time question. The coating material is made of the following raw materials: deicing agent, bonding material, hydrophobic coating material, hydrophilic coating material, hydrophobic plasticizer, hydrophilic plasticizer, glycerin, anti-sticking agent, Talc powder, filler, semi-reinforcing agent, leveling agent, coupling agent, defoamer, porogen, hydrophobic fumed silica. And further provide a preparation method of the coating material, and apply it to ice melting of traffic roads. The invention does not contain harmful ions, does not cause corrosion and does not damage the environment when deicing for a long time, and has a better maintenance effect on the road surface; the raw material has a wide range of sources, the cost is low, the production process is simple and easy to operate, and can be popularized and applied in a wide range; It reduces a lot of manpower and material resources and has important economic value.

The invention discloses a wiring method for realizing the direct-current deicing of a ground wire of a converter station, relates to a direct-current deicing technique of a power grid transmission line, and aims at providing a method for effectively reducing the equivalent resistance of the ground wire to be deiced. The technical points of the wiring method are as follows: the wiring method comprises a step of carrying out all-insulation transformation on the ground wire to be deiced, and retaining one grounding point at most after the all-insulation transformation; a step of dividing the ground wire into n sections, wherein each section of the ground wire comprises one ground wire or at least ground wires which are parallel to each other and two ends of which are aligned; a step of connecting one ends of all ground wires belonging to one same ground wire section by means of short circuits so as to be used as one end of the ground wire section, and connecting the other ends of all ground wires belonging to one same ground wire section by means of circuit boards so as to be used as the other end of the ground wire section; a step of connecting one ends of all the ground wire sections with a lead I and connecting the other ends of all the ground wire sections with a lead II; a step of connecting an output access point of a direct-current deicing device with the lead I; a step of connecting the output access point of the direct-current deicing device with the lead II, etc.

The invention provides a multi-stage freezing automatic water purifier and a multi-stage freezing water purification method using the same. The multi-stage freezing automatic water purifier comprises a freezing module and a melting module, wherein the freezing module comprises a plurality of freezing pools which are sequentially arranged in a stacked mode from top to bottom; the melting module comprises a plurality of melting pools which are arranged in one-to-one correspondence with the freezing pools; an ultrasonic vibrator is arranged in each melting pool, and an ultrasonic probe is connected to the ultrasonic vibrator; the freezing module and the melting module conduct heat exchange through a refrigerating unit; the freezing module, the melting module, the ultrasonic vibrators, the ultrasonic probes and the refrigerating unit are all connected with a controller and controlled by the controller; and wastewater to be treated is subjected to multi-stage freezing and melting between the freezing module and the melting module. The invention aims to provide the multi-stage freezing automatic water purifier which is simple to operate, wide in application range, small in occupied area, low in energy consumption and capable of carrying out indifference purification treatment on wastewater with different water qualities and the multi-stage freezing water purification method using the multi-stage freezing automatic water purifier.

A live inspection robot for shock-proof hammer of transmission line the invention relates to the technical field of shock-proof hammer inspection and repair equipment, include a mobile carrier, a storage bin arranged on the moving carrier, a suspension mechanism arranged on the storage bin, a spraying mechanism arranged on the moving carrier, an inspection mechanism arranged on the moving carrierfor overhauling the shock-proof hammer, and a control mechanism arranged on the moving carrier for controlling the moving carrier, the suspension mechanism, the spraying mechanism and the overhaul mechanism; Not only can the shock hammer on the transmission line be repaired, but also the ice on the transmission line can be rapidly melted in winter, and the ice melting effect is obvious, and the damage to carbon steel and plants is small.