40 results about "Icing" patented technology

A system to control a wind turbine, including meteorological instruments for measuring ambient climatic conditions, and generating corresponding meteorological signals, a memory for storing an icing tolerance, a first calculator for calculating an overall icing probability based on the meteorological signals and a controller for stopping the wind turbine when the overall probability of icing is greater than the icing tolerance. Also disclosed is a method for controlling a wind turbine, including the steps of a) measuring ambient climatic conditions and generating corresponding meteorological signals; b) storing in memory an icing tolerance; c) calculating an overall probability of icing based on the meteorological signals; and d) stopping the wind turbine when the overall probability of icing is greater than the icing tolerance.

The invention relates to the technical field of aircraft anti-icing and deicing performance testing, and discloses an icing wind tunnel spraying device and a water supply pressure quick response device and method thereof. The icing wind tunnel spraying device comprises a gradient pipe, a water tank, a control device and a plurality of spraying assemblies, wherein the top end of the gradient pipe is higher than the bottom end of the gradient pipe; the top end and the bottom end of the gradient pipe are provided with pressure sensing devices correspondingly; the cross sectional area of the gradient pipe is gradually reduced in the direction from the top end to the bottom end; the water tank communicates with the top end of the gradient pipe through a first pipeline; the water tank communicates with the bottom end of the gradient pipe through a second pipeline; the first pipeline is provided with a switch valve and a booster pump so as to pump water in the water tank into the top end of the gradient pipe and enable the water to circulate in the gradient pipe; the second pipeline is provided with a flow control valve; the control device is electrically connected with the booster pump and the two pressure sensing devices; and the spraying assemblies are arranged along the length direction of the gradient pipe. According to the arrangement, the water supply pressure in the gradient pipe can be adjusted before the spraying assemblies are started, and invalid icing cloud does not exist.

The invention relates to a pontoon anti-icing system and a pontoon anti-icing method based on icing probability prediction, and belong to the technical field of pier safety equipment. The system is characterized by comprising at least a lifting mechanism for driving the pontoon to move up and down, a prediction module that predicts an icing probability, and a controller for controlling the liftingmechanism to act according to the logic judgment value of the prediction module. By adopting the technical scheme, the anti-icing pontoon system and method based on icing probability prediction can effectively predict whether a water area is iced or not, and a pontoon is lifted in advance by using an electromechanical full-automatic lifting column, so that the damage of ice load to the pontoon can be effectively prevented; and the anti-icing pontoon system and method are particularly suitable for the water areas where the ring, the Circum-Bohai-Sea and the sea river mouths and river yachts are moored and are easily influenced by ice disasters in winter.

An embodiment of the present invention provides a method and device for preventing icing at the air inlet of a cooling tower based on ultrasonic waves. The method includes: collecting the accumulated water at the air inlet; The generator emits ultrasonic waves of a first frequency. The method according to the embodiment of the present invention can reduce the amount of accumulated water at the air inlet of the cooling tower, thereby effectively preventing the air inlet of the cooling tower from freezing and ensuring the heat exchange efficiency of the cooling tower.

The invention provides a wind driven generator icing weather resistance experimental system and method. The wind driven generator icing weather resistance experimental system and method are used for achieving the purpose that in the prior art, the energy of removing the attaching ice on fan blades needs to be researched. The system comprises a wind driven generator blade simulation device, an environmental simulation device and a heat energy consumption testing device. The heat energy consumption testing device provides the heat and tests the situation of temperature changes of the hot air existing before and after the attaching ice drops. The wind driven generator blade simulation device comprises an experimental cavity, a blade and a servo motor. The blade is arranged in the experimentalcavity through a rotating support. The end, connected with the blade, of the rotating support is arranged in the experimental cavity, and the other end of the rotating support is connected with the output end of the servo motor. The rotating support is driven by the servo motor to rotate so as to drive the blade to rotate. By the adoption of the wind driven generator icing weather resistance experimental system and method, the attaching ice removal force or amount under different natural conditions can be tested, and the result is more reliable.

The invention discloses a line icing monitoring system based on micro-meteorological monitoring and SVM algorithm, comprising: a Raman sensing module, a Brillouin sensing module, a comprehensive Rayleigh scattering module, a time division multiplexing module, and an icing area monitoring module, ice coating thickness monitoring module, wind speed monitoring module, and SVM-based ice coating alarm module, monitoring the icing area of ​​overhead transmission line based on the temperature value of each point on the OPGW; monitoring the icing area of ​​the overhead transmission line based on the strain value of each point on the OPGW, etc. The thickness of ice coating is measured; the wind speed of the overhead transmission line is monitored according to the vibration frequency of the OPGW; the early warning of ice coating is carried out according to the temperature value, strain value and wind speed of each point on the OPGW. The line icing monitoring system based on the micro-meteorological monitoring and the SVM algorithm disclosed in the embodiment of the present invention can improve the accuracy of judging the icing of the power transmission line.

The invention relates to a horizontal axis wind generating set with a de-icing device. The horizontal axis wind generating set with the de-icing device comprises a wind generating component, a de-icing external support component, a rainwater treatment chamber, a steam treatment component and a hot air component. Through specifically arranging the various components, after the surface of a wind turbine blade is found to be frozen, namely, after a cabin position is fixed through a cabin card component, a heat-insulating component is raised and a wind power blade is blown by the hot air, so the effect of removing the ice on the blade surface effectively is realized.

The invention discloses a predictive anti-icing method using a graphene heating film. The purpose is to accurately deicing and solve the problem of high energy consumption of flight equipment deicing. It includes the following steps: input the obtained current environmental parameter information into Obtain the predicted temperature range under the next flight state in the icing prediction system; judge whether there is icing on the flight equipment, if so, turn on the heating component to heat the flight equipment according to the preset ice layer type; monitor the flight equipment in the next Whether there is an ice layer during the flight state, if so, adjust the heating power of the heating assembly to eliminate the ice accumulation of the flight equipment. The present invention predicts the temperature range in the next flight state through the icing prediction system and then adjusts the heating assembly, and avoids the problem of large energy consumption of periodic heating or continuous heating when preventing the icing of flying equipment.

The invention discloses a polar ship louver and a de-icing method thereof. The polar ship louver comprises a window frame and louver blades parallelly arranged in the window frame, a detecting mechanism used for detecting the icing state and a heating mechanism used for melting ice are arranged in the window frame, and the detecting mechanism and the heating mechanism are all electrically connected with a controller. By arranging the detecting mechanism, the heating mechanism can be started for melting the ice only during icing of the louver, energy consumption is reduced, the economical efficiency of a ship is improved, detecting and de-icing are automatically controlled without manual operation, the operation difficulty is lowered, and operation safety is improved.

The invention discloses an on-line monitoring device for icing of simulated wires based on the law of icing in micro-topography and micro-meteorological areas, which mainly includes simulated wires, stepping motors, motor fixing sleeves, rolling belt shaft bearings, sealing boxes I, sealing boxes II, three-dimensional Force sensor I, 3D force sensor II, stepper motor driver, stand and microcontroller I. The invention can monitor the ice thickness of the power transmission line under the same meteorological environment, and the device has small volume and low power, and can be conveniently installed on the pole tower.

The invention discloses an icing early warning determination method based on multi-source data fusion. The invention relates to the technical field of icing early warning, and solves the problem that in the prior art, the possibility of icing in each area cannot be predicted and the accuracy of the early warning is reduced. Through The icing prediction unit analyzes the environmental information to predict whether each area is icing, divides the area where the circuit to be detected is located into several sub-areas, obtains the environmental information, and obtains the icing prediction coefficient of the sub-area through the formula Xi, if the icing prediction coefficient Xi of the sub-region ≥ the threshold value of the icing prediction coefficient of the sub-region, the corresponding sub-region is marked as an icing sub-region, and the wind direction of the cold air is obtained, and then according to the time sequence of the cold air arriving at the sub-region , to sort each ice-covered sub-area, to predict the ice-covered area in each area, and to judge the time sequence of the ice-covered areas, so as to improve the accuracy of early warning.

The invention discloses a contact evaporator and its application system and method, and designs three kinds of systems, which are respectively used in the fields of humid air latent heat utilization, seawater desalination, seawater desalination and power generation coupling. The high-pressure shell connected to the system has a working fluid inlet and a working fluid two inlet on the high-pressure shell, atomizers are installed on both the working medium one inlet and the working medium two inlet, and a liquid Solid outlet and gas outlet, the inlet end of the thermodynamic cycle system is connected to the gas outlet; the contact evaporator solves the problem of icing on the surface of the evaporator when the air source heat pump operates at a low temperature of the cold source, and the ground source heat pump and seawater source heat pump are affected. Geographical and geographical constraints, seawater desalination vacuum pump energy consumption and other problems, and when the surface seawater temperature is high, seawater desalination is coupled with the power generation system to achieve cascade utilization of energy.