47results about How to "Avoid secondary freezing" patented technology

The invention discloses a snow and ice removal vehicle which comprises a vehicle body, a snow throwing machine, an ice-breaking device, an ice-melting device and a heat transferring pipeline. The snowthrowing machine is connected to the front portion of the vehicle body, and the ice-breaking device is connected to the front portion of a vehicle body chassis. The ice-melting device is connected tothe middle of the vehicle body chassis. One end of the heat transferring pipeline communicates with a heat output opening of the ice-melting device, and the other end of the heat transferring pipeline is connected with a horn opening structure. The snow and ice removal vehicle provided by the invention is easy to operate and control, ice and snow layers can be efficiently and thoroughly removed,damage to tracks is not prone to being caused, energy conservation and environmental friendliness are achieved, and secondary environmental pollution is avoided.

The invention provides a road condensed ice early-warning and automatic disposal system control method. According to the method, an early-warning about road condensed ice is given through a weather forecast issued by the Meteorological Bureau, owners are notified, and a plan is provided; real-time data and historical data of a meteorological monitoring station and a road surface sensor of a monitoring road segment are utilized to estimate road surface icing time, and accurate alarm information is provided for the owners according to the data of the monitoring station and the sensor; then calculation is performed on parameters of the spraying dosage, spraying interval and spraying times of a snow-melting agent for condensed ice disposal to provide recommended parameters for the owners; assessment is performed again after spraying is over; if icing is still possible, secondary spraying preparation is made; and if icing is impossible, a system stops running, and it is supposed to wait forthe Meteorological Bureau to issue information. Through the method, the spraying dosage, spraying interval and spraying times are precisely analyzed, the snow-melting efficiency of the snow-melting agent is improved, economic benefit is increased, optimal spraying time is accurately acquired, the road surface condition, obtained after spraying is over, is automatically fed back, and secondary icing is prevented.

The invention discloses a hand-push double-tooth multifunctional ice breaking machine. The machine comprises a trolley, a hot melting module, an ice breaking module, a collecting module, a transportation module and a crushing module. The hot melting module, the ice breaking module, the collecting module, the transportation module and the crushing module work cooperatively to form the multifunctional ice breaking machine. Road ice breaking, ice block collecting, ice breaking and cleaning are integrated. The invention discloses a double-tooth ice breaking wheel. Sharp teeth and an impact gear are used for ice breaking alternately, point-plane combination is achieved, and the ice breaking efficiency is greatly improved. According to the machine, compacted ice and snow of a road can be treatedin a large range, an ice layer of a certain area can be broken in pertinence, and accumulated snow is removed. Meanwhile, the machine is suitable for the road environment, communities and the like and also applicable to solving the problems about snow accumulation and ice accumulation, and the travel safety of people is guaranteed.

The invention discloses an ice melting agent for deicing power transmission lines, and a preparation method thereof, and belongs-the technical field of deicing of the power transmission lines. The icemelting agent is prepared from, by weight, 15-20 parts of modified multi-walled carbon nanotubes, 24-28 parts of epoxy resin, 30-35 parts of carbamide, 10-16 parts of sodium acetate, 20-25 parts of 1,2-propanediol, 12-18 parts of glycerol, 5-8 parts of glycerol monolaurate, 6-10 parts of a corrosion inhibitor and 41-45 parts of water. The multi-walled carbon nanotubes are modified, and then are compounded with the epoxy resin, carbamide, sodium acetate and the corrosion inhibitor are added, and all above components synergistically act, so the obtained solid granular ice melting agent has excellent comprehensive performances, still has a high ice melting rate in a low temperature environment, has a freezing point of -35 DEG C or below, has very small damages to roads, electric poles and plants, and can form a hydrophobic film on the surface of the material to protect the material and reduce damages. The ice melting agent plays a great role in the deicing operation of the power transmission lines, is especially suitable for the deicing in outdoor low-temperature environments, and is worthy of promotion.

The invention discloses an ice removing and snow melting protection device used for a bridge stay cable. The ice removing and snow melting protection device comprises a PE pipe. The inner surface of the PE pipe is fixedly connected with a water absorption expansion device. The inner surface of the water absorption expansion device is fixedly connected with a waterproof film, and a longitudinal opening groove is formed in the waterproof film. A self-temperature-control tracing heat belt is spirally connected between the outer surface of the water absorption expansion device and the inner surface of the PE pipe. By means of the ice removing and snow melting protection device used for the bridge stay cable, due to the arrangement of the water absorption expansion device, the stay cable can beisolated from water flow vapor, the corrosion-resisting, waterproof and rustproof effects of the stay cable can be achieved, and the service life of the stay cable is prolonged; the water absorptionexpansion device can absorb melted snow water so that the size can be enlarged, the water absorption expansion device expands outwards from a pipe opening, and stress ice breaking is achieved; and dueto the arrangement of the opening of the PE pipe, vapor generated by evaporation of the water surface around the stay cable can be absorbed, the device is electrified and used when the temperature ishigh, a dehumidifying effect is achieved in summer, the stay cable is protected, and the service life of the stay cable is prolonged.

The invention provides a defrosting assistance system of an air-conditioning heat pump unit in extremely-cold working conditions. The defrosting assistance system comprises a water collecting tray anda heating element, wherein the water collecting tray is used for collecting defrosting water when the air-conditioning heat pump unit works in the defrosting mode; and the heating element is used forsupplying heat to the water collecting tray. According to the defrosting assistance system, the effect that defrosting water is timely and thoroughly discharged out of the water collecting tray can be achieved through the reasonable arrangement of the heating element on the water collecting disc. The invention further discloses the air-conditioning heat pump unit and a defrosting method. The air-conditioning heat pump unit is equipped with the defrosting assistance system. The defrosting method is applied to defrosting by using the defrosting assistance system.

The invention discloses a 10kV distribution line deicing device. The 10kV distribution line deicing device comprises an icebreaking mechanism, a clamping base matched with the icebreaking mechanism toclamp a distribution line, a sweeping mechanism and connecting rods connected between the icebreaking mechanism and the sweeping mechanism. The number of the connecting rods is two, the front ends ofthe two connecting rods are fixedly connected to the rear portion of the icebreaking mechanism, and the front ends of the two connecting rods are rotationally connected to the two sides of the sweeping mechanism through bearing pedestals correspondingly. The device is reasonable in structure and convenient to use, double icebreaking is conducted through the ice melting agent and the icebreaking protruding edges arranged in the icebreaking grooved wheel, icebreaking is thorough, then residual water spots on a power distribution line are thoroughly removed through the sweeping mechanism, and secondary icing is avoided; and a warning lamp is fixedly mounted at the bottom of the connecting arm, so that an operator can conveniently observe the operation position of the deicing mechanism on thepower distribution line.

The invention relates to a preparation method of a frost-inhibiting and defrosting super-hydrophobic surface structure. The preparation method comprises the following steps of processing an equidistant micron-sized arc groove array on a smooth substrate sample surface, cleaning the sample with the micron-sized arc groove array, carrying out heating oxidation in a mixed alkali solution to form a layer of micro-nano blade-shaped structure on the sample surface, preparing a sample surface with a micro-nano topological structure, then silanizing the sample surface to form a layer of monomolecular hydrophobic group, and enabling the monomolecular hydrophobic group to be in a superhydrophobic state; Compared with an existing frost prevention and removal technology, two main changes are made, firstly, an ultra-clean chamber and photoetching equipment are not needed, and the micro-nano topological structure is directly processed on the surface of a metal substrate; and secondly, the surface design has frost inhibiting and defrosting properties at the same time, the application range is wide, and the method is suitable for various types of heat exchangers such as tube fins and micro-channels with copper or aluminum or aluminum alloy as a substrate material.

The invention discloses a novel efficient snow expelling process in the technical field of road snow removal. The novel efficient snow expelling process comprises the following steps of S1, crushing and pushing ices and snows on a pavement by using an ice breaking unit; S2, blowing air to the two sides of the pavement through a cold air blowing cylinder in a dislocated manner to blow away ice andsnow residues remaining on the pavement; S3, blowing hot air to the pavement through a hot air blowing cylinder to carry out melting treatment on the ice and snow residues remaining on the pavement; S4, scraping residual ice water, melted by the hot air, on the pavement through a snow scraper; and S5, transmitting heat to the pavement from the bottom of a drying box so that the melted snow water on the pavement is dried. The advancing process of a snow expelling vehicle on the pavement, snow crushing and pushing, dislocated snow blowing, hot air snow melting, snow scraping and water removing and snow water drying works are carried out on the pavement in sequence so as to effectively clean up accumulated snow on the pavement and guarantee the dryness of the pavement; and therefore, the pavement is prevented from icing, the pavement is very well protected while vehicle slipping is prevented, and good practicability is realized.

The invention discloses a special deicing vehicle for rails. The deicing vehicle comprises a vehicle body, control rooms are arranged at both ends of the vehicle body, and a power distribution room, ahigh-pressure air pump room and an electromagnetic heating device room are arranged in the vehicle body; two deicing mechanisms are opposite to the rails and are parallelly fixed to the lower portionof a chassis of the vehicle body and provided with lifting devices, and each deicing mechanism includes a first deicing shovel, a first heating disc, a high-pressure blowing nozzle, a second heatingdisc and a second deicing shovel; the first heating discs and the second heating discs are connected to the electromagnetic heating device room, and the high-pressure blowing nozzles are connected toa high-pressure air pump of the high-pressure air pump room. According to the special deicing vehicle for the rails, by adopting the structure above, deicing is conducted more thoroughly; moreover, the rails are automatically heated according to an electromagnetic induction principle, so that ice and snow are melt more effectively, then ice water is removed through the high-pressure blowing nozzles to prevent secondary icing, the ice and water are removed thoroughly through secondary heating, and the deicing efficiency is high.

The invention discloses a non-contact airplane deicing anti-freezing drying device for ground. The device comprises a master control system, a heat energy environment system, a deicing and anti-freezing system and a circulating system. The circulating system is laid on the ground or a working surface; a bottom of an airplane is propped against the circulating system in a releasable manner; the deicing and anti-freezing system is movably connected to the circulating system; and a heating surface of the heat energy environment system faces an airplane body, the heat energy environment system isdetachably fixed at the top of the circulating system, the heat energy environment system and the circulating system are electrically connected with the deicing and anti-freezing system, and the deicing and anti-freezing system is electrically connected with the master control system. The non-contact airplane deicing anti-freezing drying device for the ground is simple in structure, convenient tooperate, high in universality, capable of achieving full-automatic deicing anti-freezing on an airplane, capable of preventing the airplane from secondary freezing after deicing, capable of rapidly recycling a waste liquid and good in safety.

The invention provides a high-voltage electric wire deicing device capable of realizing automatic deicing. The device comprises a case, a deicing drilling bit, a moving device, a heat deicing device,an anti-freezing liquid coating device and a base, wherein a first electric heating wire is arranged in the wall of the case; the inside of the case is hollow; the moving device, the heat deicing device and the anti-freezing liquid coating device are wrapped; a high-voltage electric wire sequentially passes through the deicing drill bit, the moving device, the heat deicing device and the anti-freezing liquid coating device; the base is arranged on a high-voltage electric wire tower frame; a main control system is arranged inside each of the case and the base. Through the moving device, the mechanism moves on the high-voltage electric wire; through the matching of the deicing drill bit, the heat deicing device and the anti-freezing liquid coating device, accumulated ice on the high-voltageelectric wire can be effectively removed; the excessively fast secondary icing can be prevented. The mechanism is simple and ingenious; the long-time and efficient, safe and stable work on the electric wire can be realized; meanwhile, the cost is low; the problem of high-voltage electric wire ice accumulation in south regions in winter can be solved.

The present invention relates to vehicle, and is especially accumulated road snow clearing truck and its design method. The accumulated road snow clearing truck includes one vehicle body and one power mechanism, and features the liquid tank fixed on the vehicle body, the spraying mechanism with nozzles towards ground and the pipeline connected between the liquid tank and the spraying mechanism. The liquid tank is connected to a heater and the pipeline has control mechanism and control valve. The accumulated road snow clearing truck has high snow thawing effect.

The invention discloses a solid ice-melting composition for deicing substation equipment and a preparation method thereof, which is characterized in that, in terms of mass percentage, the solid ice-melting composition is mainly composed of the following components: 60-63 % sodium chloride, 24‑27% soda ash and 10‑13% trichloroacetic acid. The solid ice-melting composition for substation equipment deicing and the preparation method thereof of the present invention achieve the purpose of rapidly melting ice and snow by increasing the initial ice-melting rate of the ice-melting composition. At a temperature of 5°C, its The initial ice-melting rate can reach 44.1mL/min, which reduces the corrosion of the substation equipment to a certain extent, prevents secondary icing of the substation equipment, and solves the shortcomings of the existing technology.

The invention relates to a snow melting device and a snow melting vehicle. The snow melting vehicle comprises a vehicle body, wherein a snow melting unit and a water absorption unit are arranged at the lower side of the vehicle body; the snow melting unit is positioned at the front side of the water absorption unit and is arranged in a way of being adjacent to the water absorption unit. The snow melting unit and the water absorption unit are adjacent; after ground accumulated snow is melted by high-temperature gas in the snow melting unit, the water absorption unit can subsequently suck the melted snow water out of a main cover body; the condition that the distance from the snow melting unit to the water absorption unit is far, so that the melted snow water is exposed in outside cold environment against to generate secondary icing before being sucked out is avoided; the snow melting efficiency is improved.