37results about How to "Melting ice fast" patented technology

The invention provides an equipment ice melting method, device and system based on the microwave technology. The method obtains ice layer information of ice frozen equipment and determines the microwave frequency of ice melting according to the ice layer information of the ice frozen equipment and then determines an ice melting mode according to the ice layer information of the ice frozen equipment and the microwave frequency of the ice melting. The system comprises a sensing unit used to acquire the ice layer information of the ice frozen equipment; a microwave generating unit used to smoothly output high-power microwaves; a steam generating unit used to generate steam by radiation heating of a monopole oscillator antenna; ice melting unit for performing ice melting; and a control unit for performing the ice melting according to the method. The invention is suitable deicing of non-power-transmission lines, realizes jointly implementation of four types of ice-melting modes such as microwave radiation ice melting, microwave electrode ice cutting, microwave steam ice melting and microwave steam ice cutting so as to achieve safe, fast and highly-efficient electrical equipment deicing.

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.

The invention discloses a carbon dioxide heat pump device, which comprises a compressor, a gas cooler, an oil heat exchanger, a first filter, a throttling device, an evaporator, and a gas-liquid separator sequentially connected to a main heating cycle pipeline. The CO 2 The heat pump device also includes an ice-melting circulation pipeline and a compressor connected to the ice-melting circulation pipeline, a third filter, a second electromagnetic valve, an evaporator, and a gas-liquid separator. When the bottom of the evaporator freezes, the second Solenoid valve, high temperature and high pressure CO 2 The gas passes through the third filter and the second solenoid valve from the outlet of the compressor, and enters the independent pipeline in the lower part of the evaporator to melt the ice layer at the bottom of the evaporator, and then the generated heat CO 2 The vapor returns to the gas return port of the compressor through the gas-liquid separator to form CO 2 Melting cycle of heat pump unit. CO of the present invention 2 The heat pump device operates at a low ambient temperature, which can realize rapid ice melting and make the heating operation of the system stable.

An LNG gasifier water spraying system comprises an LNG gasifier, a circulation water pool, a monitor device, a controller and a spraying device. The LNG gasifier is arranged on a base. A water guide trough connected with the circulation water pool is arranged around the base. Heating devices are independently mounted on the side wall and the bottom of the circulation water pool. The monitor devicecomprises a first temperature detector on a water inlet pipe, a second temperature detector in the circulation water pool and a liquid level detector. The controller controls opening and closing of avalve and the heating devices according to transmitted temperature signals and liquid level signals. Multiple water stop layers are arranged in the middle of a heat exchange pipe set on the gasifier.Fins of heat exchange pipes are spirally distributed in different forms. By means of the LNG gasifier water spraying system, heat exchange efficiency is greatly improved, the intelligent control method is adopted, the relations between water inlet heat, consumed heat, the water quantity and electric energy are balanced, natural water heat energy is utilized to the greatest extent, meanwhile, normal use is not influenced, automatic control can be achieved, and control precision is high.

The invention relates to a high voltage large power resonance frequency conversion deicing device and method which is capable of improving the frequency of a line loading circuit from an industrial frequency of 50Hz to 1000-1800Hz according to the principle that a lead wire generates skin effects under a high frequency situation, and the resistance of the corresponding line is increased by about 5 times, the current transmitted by the line under the condition of a same deicing power is reduced, so as to reduce the overcurrent hardness of the line; the principle of LC series resonance is simultaneously utilized by connecting a resonance capacitor reaction at the connection position of a power electric frequency conversion device and the line to lead the equivalent inductance of the power electric frequency conversion device and the line, thus realizing series resonance under the current of 1000 to 1800Hz. In order to realize series resonance between the equivalent inductance of a line under the situation with incorrect line data and the series capacitor, a self adaptive frequency adjusting technique is adopted in the invention to lead the line to be operated at a resonance point. The device of the invention is suitable for deicing three-phase and single-phase lines; a constant current control method can ensure the stability of deicing; an advanced phase-split control method canensure the device to be suitable for the simultaneous deicing of the three-phase line with different parameters.

The invention discloses a transmission line ice melting device, belonging to the technical field of transmission line maintenance, which comprises a moving tool car, a supporting mechanism and an icemelting mechanism. The mobile tool vehicle is provided with a centrifugal pump and a liquid storage cylinder storing liquid ice-melting agent, wherein the liquid storage cylinder is connected with theinlet of the centrifugal pump through an inlet pipe, and the outlet of the centrifugal pump is connected with the lower end of the Y-shaped outlet pipe; The support mechanism comprises a base and a support frame arranged on the base; The support frame comprises a first support bar, a second support bar and a Y-shaped fixing groove; The ice melting mechanism comprises a U-shaped first nozzle and an inverted U-shaped second nozzle, wherein a first branch of the outlet pipe is connected with the first nozzle, and a second branch of the outlet pipe is connected with the second nozzle. The invention can completely cover the circuit, thoroughly melt ice, and additionally provides a melting agent suitable for the melting device, which has low freezing point, fast melting rate in a short time, remarkable melting effect, and little harm to carbon steel and plants.

The invention provides an efficient road deicing agent and a preparation method thereof. The electrochemical comprises, by weight, 0.1-1 part of polyethylene oxide, 0.2-0.3 part of potassium acetate,100-150 parts of a plant ash lixivium, 2-5 parts of an emulgator, 0.3-0.5 part of sodium citrate, 0.02-0.05 part of mercapto benzothiazole, 0.01-0.03 part of sodium polyaspartate, 0.2-0.4 part of sodium tetraborate, 0.4-0.6 part of sodium lactate, 0.3-0.6 part of dicyclohexylaminenitrite and 3-5 parts of diatom ooze dry powder. The deicing agent is prepared through dissolution, stirring, heating,repeated freeze thawing and other methods, with sylvite as a main deicing component, the deicing agent does not contain chloridion for corroding metal, efficient deicing is achieved, corrosion of thedeicing agent on the metal and pavement and damage of water containing the deicing agent after snow melting to vegetation can also be effectively prevented, and the deicing agent is an energy-saving,environment-friendly and efficient deicing agent.