12 results about "Deicing fluid" patented technology

The invention relates to the technical field of wind turbine generator maintenance, and discloses a wind turbine generator blade unmanned aerial vehicle deicing assembly and method.The wind turbine generator blade unmanned aerial vehicle deicing assembly comprises an unmanned aerial vehicle, and a laser radar and an installation shell integrating an ultrasonic transducer, a pulse nozzle and a hydraulic pump are installed at the bottom of the unmanned aerial vehicle. The deicing control system obtains focus space coordinates and interface resonance frequency of the blade surface by using a space state sensing module; the stress field focusing module calculates the phase delay amount of the ultrasonic transducer, compensates the pose deviation of the unmanned aerial vehicle by adjusting the emission time sequence, and drives the ultrasonic transducer to generate resonance stress on an ice layer-skin interface; and the sound stream synchronous control module determines a jet flow triggering moment according to synchronous phase locking solution, drives a pulse nozzle at an instantaneous negative pressure phase point of a sound wave period to inject a small amount of deicing fluid into an interface crack, and generates shear stress to induce the interface crack to expand and peel off an ice layer. Accurate throwing of deicing energy is achieved, and the icebreaking efficiency is improved on the premise that the safety of the blade structure is guaranteed.

The application discloses a super-long chain (carbon atom number in a hydrophobic tail chain is greater than or equal to 18) polyoxyethylene ether surfactant thickened aircraft deicing and anti-icing liquid and a preparation method. The super-long chain polyoxyethylene ether surfactant thickened aircraft deicing and anti-icing liquid comprises the following components and mass percentages: alcohol 40-69%, deionized water 30-59%, and surfactant 0.2-2.0%, wherein the surfactant is a polyoxyethylene monomethyl ether ester of docosanoic acid (C 22 -350) with the following structural formula: The application obtains a deicing and anti-icing liquid which is good in deicing and anti-icing performance and relatively environment-friendly, solves the problems that a polymer-based deicing and anti-icing liquid is easy to be rehydrated to form a hydrated gel on the surface of an aircraft and that a surfactant itself or other additives cause corrosion on the surface of the aircraft under the premise of ensuring the deicing and anti-icing effect.

The invention relates to a fuel cell fixed power generation cooling system and method and a power generation system. The fuel cell fixed power generation cooling system comprises an expansion water tank, the expansion water tank is connected with a cooling assembly, the expansion water tank is connected with a liquid supplementing pipeline, and the cooling assembly is connected with a liquid discharging pipeline; the inlet end of the liquid supplementing pipeline is connected with the outlet end of the liquid discharging pipeline and then connected with the deionized water pipeline and the anti-freezing liquid pipeline which are arranged in parallel, a first water pump and a first switch valve are arranged on the liquid supplementing pipeline, a second water pump and a second switch valve are arranged on the liquid discharging pipeline, and the deionized water pipeline is provided with a third switch valve and connected to the deionized water tank. The inlet of the deionized water tank is used for being connected with a tail exhaust pipeline of the power generation system, the anti-freezing liquid pipeline is provided with a fourth switch valve and connected to the anti-freezing liquid tank, the cooling system does not need manual operation, and the labor cost is saved.

The utility model belongs to the field of airport airplane deicing, and particularly relates to an automatic deicing fluid detection device which comprises a sample collection device, a detection device, a control device, a recovery device and a chassis device. The detection device is used for detecting liquid refractive index and particle data in liquid; the control device is used for controlling the work of each component in the detection device; the recovery device is used for storing and emptying waste liquid; the chassis device is used for integrally bearing the device and carrying out traction and fixation; the collection device is connected with the detection device, a control device is arranged in the detection device, and the detection device is connected with the recovery device. The device is installed at a fixed point of a liquid adding station, automatically identifies information of a deicing vehicle, and is used for collecting a deicing liquid sample, automatically detecting, displaying a detection result, judging liquid applicability and storing the detection result. The sampling detection efficiency of the deicing liquid spray gun opening in the deicing vehicle is improved, and a plurality of steps of the whole detection process are optimized to be completed in one station.

The invention provides a method for recovering performance of a fuel cell stack polluted by an anti-freezing solution, and belongs to the technical field of fuel cells. The performance recovery method comprises the following steps: (1) nitrogen is introduced into a cathode and an anode of a galvanic pile, and the relative humidity of the nitrogen is 50-80%; (2) hydrogen is introduced into the anode of the galvanic pile, no gas is introduced into the cathode of the galvanic pile, and the relative humidity of the hydrogen is 80-100%; (3) closing an outlet valve and an inlet valve of the anode, wherein the cathode is not ventilated; (4) cooperatively controlling the stack temperature, the cathode and anode gas flow, the gas inlet temperature and the relative humidity, and carrying the stack to 0.2-0.5 A / cm < 2 > for a period of time, so that a cathode oxygen-deficient and even hydrogen-rich environment is formed in the whole process; and (5) normally pulling and loading the electric pile to 2-2.5 A / cm < 2 > to complete the recovery process. According to the method disclosed by the invention, the cooling liquid on the membrane electrode can be efficiently and quickly removed, and the performance of the membrane electrode can be recovered to the performance before pollution.

The heater comprises a shell, a combustor, an inner partition plate, a coil pipe set, a heat conduction column, a pipe spacer, a filter screen body and an elastic quick release mechanism, the shell is provided with a cavity, a connector, a liquid inlet, a first liquid outlet and a flue opening, the combustor is installed on the connector, the inner partition plate is connected into the cavity and forms a liquid inlet cavity, the liquid inlet is communicated with the liquid inlet cavity, and the coil pipe set is connected with the heat conduction column. The coil pipe set comprises coil pipes arranged in the cavity in a surrounding mode, the liquid inlet cavity is communicated with the first liquid outlet through the coil pipe set, one end of the heat conduction column is arranged in the liquid inlet cavity, the other end of the heat conduction column is arranged in the cavity, the pipe spacer is connected between the coil pipes, the filter screen body covers the flue opening, and the elastic quick release mechanism is arranged between the filter screen body and the flue opening. The cavity is heated through the combustor, heating of liquid in the coil pipe set and the liquid inlet cavity is achieved, the heating efficiency of the liquid in the liquid inlet cavity can be improved through the heat conduction column, and the heated deicing liquid is discharged into the deicing vehicle through the first liquid discharging opening so that the deicing vehicle can conduct deicing operation on an airplane.

The utility model discloses a portable anti -icing fluid tester, including casing, gasbag, several different buoyancy ball of density, the cavity of accommodating anti -icing fluid, inlet and outlet liquid passage, gasbag opening are equipped in casing, wherein inlet and outlet liquid passage, gasbag opening all are linked to the inside of cavity, several different buoyancy ball of density all set up in the cavity, and one end of gasbag is installed on gasbag opening.

The application belongs to the technical field of aircraft deicing parameter control and processing, and discloses a kind of aircraft secondary icing time margin control method, system and computer equipment.The method is by collecting meteorological parameters and aircraft primary deicing parameters, testing aircraft surface roughness related data, computer body surface residual deicing fluid concentration;Calculate the critical radius of ice nucleus and the free energy of ice phase interface in the initial stage of the body surface icing with deicing fluid residue;Calculate the wall ice nucleus nucleation rate and ice nucleus growth rate;Calculate the ice crystal coverage rate in the near-wall space of the body surface and the secondary icing time margin.The control method has the characteristics of low cost, easy implementation, strong anti-interference ability, etc., can predict the secondary icing time margin and icing time point of the whole aircraft, provide scientific and accurate reference for dispatching command department, and effectively improve the flight take-off and landing efficiency.

The invention discloses an active wing deicing system based on a metal nanowire heating film. The active wing deicing system comprises a dynamic temperature control module and a collaborative anti-icing assembly. The dynamic temperature control module comprises a control unit, a partition temperature control circuit and a meteorological data linkage interface, and is used for receiving multi-sensor data and generating a control instruction to realize partition power adjustment of the flexible metal nanowire heating film; the cooperative anti-icing assembly comprises an Ag / Au core-shell nanowire heating film sprayed on the surface of the wing, a fluorinated nano coating, a pneumatic deicing belt and an anti-freezing solution circulating system, and efficient deicing is achieved through cooperation of multiple technologies. Through sensor miniaturization, intelligent cooperative anti-icing and self-maintenance design, the bottlenecks in the aspects of detection precision, flight safety and operation and maintenance cost in the prior art are solved, high efficiency, intelligence and sustainability of unmanned aerial vehicle precipitation enhancement operation are finally achieved, and technical support is provided for water resource management in arid regions.

The present application belongs to the technical field of aircraft ground deicing, and discloses a method and system for collaborative optimization of aircraft ground deicing configuration parameters, and a computer device. The method comprises: obtaining a correlation topology result of the aircraft ground deicing configuration parameters by analyzing the distribution fitting law of multi-scale correlation coupling of the aircraft ground deicing configuration parameters and the quantitative deicing efficiency relationship, and constructing a correlation coupling graph model of the deicing configuration parameters based on the result; establishing a collaborative optimization model of the deicing configuration parameters with the objectives of maximum safety margin of the retention time, shortest deicing time, most balanced configuration parameters, and least deicing fluid consumption; simplifying the complex constraints of the deicing configuration parameters, and solving the collaborative optimization model of the deicing configuration parameters after relaxation. The average absolute error between the measured result and the calculated value meets the airport operation requirements, and the collaborative optimization and solving method of the deicing configuration parameters reduces the deicing fluid consumption on the basis of ensuring absolute safety and efficient operation in combination with the actual deicing configuration parameters of the airport.

The invention discloses an intelligent monitoring and active anti-corrosion method and system for residual de-icing and anti-icing fluid on airport pavements, and relates to the technical field of airport pavement maintenance, and the method comprises the steps: obtaining first monitoring data and second monitoring data of a plurality of airport pavements in a target airport; judging whether the feature data of the corrosive medium of the airport pavement is abnormal data, if the judgment result is yes, calculating a dynamic risk value of the airport pavement according to the first monitoring data and the second monitoring data, comparing the dynamic risk value with a preset threshold value, and determining a risk level of the airport pavement according to a comparison result; determining a pavement maintenance decision of each airport pavement in the target airport according to the risk assessment level; according to the method, rapid identification and response of deicing liquid residues in a high-risk area can be realized, the residence time of high-concentration corrosive liquid is greatly shortened, and the chemical erosion process of a concrete surface layer is effectively inhibited.

The application discloses a circulating recovery system for aircraft deicing fluid, which comprises a collecting unit, a conveying unit, a solid-liquid separation unit and a recovery unit. The collecting unit is used for collecting the solid-liquid mixture containing the deicing fluid after deicing of an aircraft; the conveying unit is used for conveying the solid-liquid mixture of the collecting unit; the solid-liquid separation unit receives the solid-liquid mixture of the conveying unit and carries out solid-liquid separation to obtain a solid mixture and a liquid mixture containing the deicing fluid; and the recovery unit recovers the liquid mixture containing the deicing fluid separated by the solid-liquid separation unit. The solid-liquid separation unit of the application flexibly controls the overturning degree of the switch partition plate by the rising and falling of the floating plate, thereby controlling the opening and closing of the feeding port, so that the supporting separation rod is cyclically and staggeredly moved at the separation hole of the flow guide separation cover plate, and then the solid mixture on the flow guide separation cover plate can be separated to the separation cavity.