25results about How to "Solve the icing" patented technology

The invention relates to the technical field of closed type cooling towers, in particular to a closed type energy-saving cooling tower which comprises a tower shell, a fan, a circulating pipeline, a water inlet pipeline and a water outlet pipeline, a water collecting tank, a coil pipe and a spraying mechanism are arranged in the tower shell from bottom to top, and anti-freezing pipelines are arranged between the water collecting tank and the coil pipe and the inner wall face of the tower shell. Flexible switching of circulating medium flowing paths is achieved through the guide plate and the control assembly, and the circulating medium conducts heat exchange through the coil pipe at the normal temperature, so that the cooling effect is achieved; at the freezing point and the temperature below, the circulating medium enters the anti-freezing pipeline, and heat conduction is conducted through the tower shell and the low-temperature wall face of the water collecting pool; impurities in air are intercepted through dense distribution of the anti-freezing pipelines in the reserved area and the water collecting pool, heat conduction is conducted through the external environment and the low-temperature wall face of the tower shell in the flowing process, cooling of media is achieved, and heat of the media is released in the flowing process.

The invention provides an environment-friendly anti-freezing dust suppressant and a preparation method thereof. The environment-friendly anti-freezing dust suppressant comprises a surfactant, a binder, an anti-freezing agent, a corrosion inhibitor, a green tea extract and a solvent. According to the environment-friendly anti-freezing dust suppressant, the natural component green tea extract is used as an environment-friendly additive, the environment-friendly performance and biodegradability of the dust suppressant can be effectively improved, the green tea extract and other components in the environment-friendly anti-freezing dust suppressant cooperate with each other, the anti-freezing performance of the dust suppressant is effectively improved, and the dust suppressant has a good anti-freezing effect. The dust suppressant can keep a good dust suppression effect under a low-temperature condition, the problems of water resource waste and road icing are avoided, and the risk of environmental pollution can be reduced. The environment-friendly anti-freezing dust suppressant disclosed by the invention is used for removing dust, can be effectively sprayed and cover an area under a cold condition, effectively prevents dust from raising and diffusing, and realizes effective treatment on the problem of dusting in winter.

The application discloses an exhaust pipe icing test device, system and method, and belongs to the technical field of vehicles. The device comprises a first pressure sensor, a second pressure sensor and a data processor. The first pressure sensor is located at the air inlet end of the exhaust pipe of a test vehicle, and the probe of the first pressure sensor is located inside the exhaust pipe, for monitoring the air pressure at the air inlet end. The second pressure sensor is located at the air outlet end of the exhaust pipe, and the probe of the second pressure sensor is located inside the exhaust pipe, for monitoring the air pressure at the air outlet end. The data processor is connected with the first pressure sensor and the second pressure sensor, respectively, for determining whether icing phenomenon exists in the exhaust pipe based on the air pressure at the air inlet end and the air pressure at the air outlet end. The application determines the relationship between icing phenomenon and vehicle operating state through real-time monitoring of whether icing phenomenon exists in the exhaust pipe, so as to better solve the problem of icing of the exhaust pipe of the vehicle.

The invention relates to the technical field of gas pressure reduction, in particular to a two-stage pressure reducer which comprises a valve body formed by connecting a main body and an aluminum upper cover in a threaded mode, and further comprises a gas source connecting mechanism arranged at a gas inlet in the main body and configured to be connected with an external gas source and filter entered gas; the two-stage pressure reduction mechanism is arranged in the gas source connecting mechanism and the parent body and is used for performing two-stage pressure reduction on the entering gas; the gas outlet mode of the flow meter is an OUT mode, and the flow meter is fixedly installed at the end of the main body through an adapter and is configured to display the flow of output gas; the gas flow channel is arranged in the parent body and is configured to introduce the gas subjected to two-stage pressure reduction into the flow meter and prolong the flow path of the gas in the parent body, so that the gas exchanges heat with the parent body before flowing into the flow meter; according to the gas pressure reducer, the gas flow channel is formed in the parent body, and the problem that gas is frozen when an existing gas pressure reducer works for a long time or is in a low-temperature environment is ingeniously solved.

This application discloses a crankcase ventilation pipe anti-icing device, a crankcase, and an engine. The crankcase ventilation pipe anti-icing device includes a first heating jacket and a second heating jacket, which are arranged in parallel or series. One of the first and second heating jackets is fitted outside the intake pipe of the crankcase ventilation pipe, and the other is fitted outside the exhaust pipe of the crankcase ventilation pipe, forming a heating chamber outside the intake and exhaust pipes. Fuel combustion in the engine cylinder generates a large amount of heat, some of which is carried away by the engine coolant. The coolant, after absorbing heat, has a temperature close to 100°C, making it a high-quality heat source. This high-quality heat source is supplied to the heating chamber to heat the intake and exhaust pipes of the crankcase ventilation pipe, thereby preventing icing in the intake and exhaust pipes when the ambient temperature reaches zero degrees Celsius or lower, and reducing the risk of crankcase ventilation pipe blockage.

The utility model relates to a cloth bag dust removal air pressure balance tank for aluminum particle production, which comprises an air pressure balance tank body, and is technically characterized in that an upper heating component and a lower heating component are arranged on the peripheral wall of the air pressure balance tank body at intervals; the heating assembly comprises two arc-shaped hollow clamping hoops, a bolt pair connected between the two arc-shaped hollow clamping hoops, a plurality of heating rods arranged along the upper surfaces of the arc-shaped hollow clamping hoops at intervals, cushion layers arranged on the inner arc surfaces of the arc-shaped hollow clamping hoops and heat storage media located in the arc-shaped hollow clamping hoops, and the heating rods are longitudinally inserted into the arc-shaped hollow clamping hoops from the upper surfaces of the arc-shaped hollow clamping hoops; a temperature sensor is arranged on a gas outlet pipeline of the gas pressure balance tank body, a gas supplementing pipeline is arranged on the side of the top of the gas pressure balance tank body, the outer end of the gas supplementing pipeline is connected with an outlet of a dryer, and an inlet of the dryer is connected with a nitrogen feeding pipeline. According to the utility model, the problem that the interior of the tank body is iced under the condition of extremely low temperature is solved, and the pressure regulating function is ensured, so that the normal operation of an aluminum particle production system is ensured.

The utility model provides an accumulated snow and icing prevention device for a building slope type roof, which comprises an ultra-smooth covering film covering the building slope type roof, a micro drilling pipeline in contact connection with the ultra-smooth covering film, and a control assembly connected with the micro drilling pipeline, the micro drilling pipeline is arranged on a ridge of the slope roof, and the extending direction of the micro drilling pipeline is parallel to the extending direction of the ridge; lubricating liquid is arranged in the micro drilling pipeline, and the control assembly is used for controlling release of the lubricating liquid in the micro drilling pipeline. The super lubrication effect of the slope type roof surface of the building is achieved, the adhesive force between snow and ice and the surface of the covering film can be effectively reduced, accumulated snow, ice blocks or rainwater can rapidly slide away and fall off under the action of the gravity of the covering film, no snow or ice adheres to the surface of the covering film, the accumulated snow and icing prevention effect is achieved, and the service life of the covering film is prolonged. The problem of snow accumulation or icing on the slope roof of the building is fundamentally solved, and the safety guarantee is improved for living and traveling of people.

The invention relates to the technical field of fluid control and testing, and discloses a wide-area flow range multi-gas online mixing system and a control method thereof, and the wide-area flow range multi-gas online mixing system comprises a first gas path channel used for conveying basic fuel gas; the second gas path channel is used for conveying inert gas; and the third gas path channel is used for conveying high-activity additive gas. Through a large-flow metering branch, a small-flow metering branch and a low-flow-resistance straight-through branch which are connected in parallel in a first gas path channel, a second gas path channel and a third gas path channel, the purpose of adapting to large-span flow change including main and auxiliary gas switching from trace gas to large gas in each path is achieved; within a large-span gas internal combustion engine fuel low calorific value range and under the condition of different gas components and proportions, pressure backward flowing or main gas extrusion can be avoided through main pipeline switching, path control and different mixing port structures, and the mixing precision is ensured.

This utility model discloses a maintenance-free apron deck, relating to the field of low-altitude airport construction technology. Its structure includes a row of decks connected side-by-side, a row of spaced supports, and water troughs installed at both ends of the deck. The supports are placed below the deck, and the deck and supports are connected by a first fastener. The water troughs are equipped with connecting plates and water-retaining grooves that overlap with the ends of the deck, and the connecting plates and water-retaining grooves are connected to the deck by a second fastener. This utility model features excellent waterproof and drainage performance, anti-slip safety, lightweight yet high strength, easy installation and maintenance of electric heat tracing systems, stable structure and convenient adjustment, a complete water guiding system, and protected cable management; overall, it improves the safety and applicability of the apron.

A double-channel anti-icing blade separator with a circular arc hydrophobic hook relates to the technical field of separator research and development. The blade units are arranged in parallel, and the blade units are composed of a trapezoidal blade plate and an L-shaped blade plate. An inlet guide section is arranged at the bottom end of the waistline of the windward side of the trapezoidal blade plate, and the L-shaped blade plate is arranged at intervals on the upper bottom side of the trapezoidal blade plate. A first hydrophobic hook is arranged outside the angle position of the L-shaped blade plate. The end of the arm on one side of the L-shaped blade plate forms a second channel air inlet, and the arm on the other side is connected to the trapezoidal blade plate as a whole and opens a second channel air outlet, and its end is extended and a second hydrophobic hook is arranged. An outlet guide section is arranged outside the second hydrophobic hook, and a strip heating plate is embedded in the tip of the first hydrophobic hook and the waistline of the trapezoidal blade plate on the windward side and the arm of the L-shaped blade plate. The blade unit formed by the combination of the trapezoidal blade plate and the L-shaped blade plate has a double-channel structure, which improves the gas-liquid separation efficiency, and the embedded heating plate improves the applicability of cold working conditions.

The invention discloses a vehicle air inlet system, a control method and a vehicle, the vehicle air inlet system comprises a first air inlet channel formed by sequentially communicating a supercharger, an intercooler, a throttle body and an air inlet manifold, and further comprises a second air inlet channel, one end of the second air inlet channel is connected between the supercharger and the intercooler, and the other end of the second air inlet channel is connected to the throttle body; the temperature acquisition module is used for acquiring a temperature signal; the control valve is arranged between the first air inlet channel and the second air inlet channel and used for controlling opening and closing of the first air inlet channel and the second air inlet channel. By arranging the second air inlet channel, bypass short connection of the intercooler is achieved, it is avoided that the intercooler further cools inlet air, and the temperature of air in the air inlet manifold is increased. Meanwhile, a control valve is further arranged, switching of the first air inlet channel and the second air inlet channel is achieved, in this way, the freezing problem of the throttle body can be solved, effective utilization of air compression heat of the supercharger can be achieved, and the economical efficiency of the vehicle is improved.

The utility model relates to the technical field of diesel engines, in particular to a heat preservation pipe of a breather air outlet pipe for a diesel engine, which comprises a heat preservation pipe, one side of the top of the heat preservation pipe is open, a plurality of heating blocks are fixedly connected on the inner wall of the air outlet pipe, and a heating wire is fixedly connected between the heat preservation pipe and the air outlet pipe. And a plurality of heating rods are fixedly connected to the heating wire. Through a composite heating structure composed of the heat preservation pipe arranged on the outer side of the air outlet pipe in a sleeving mode, the heating wire and the heating rod, effective control over the external environment temperature of the air outlet pipe is achieved, and the problem that in the prior art, a cooling liquid circulation type heat preservation pipe cannot be heated in time in the cold start or low-temperature environment, and consequently freezing is caused is solved; the anti-freezing capability of the air outlet pipe under complex working conditions is obviously improved; and secondly, the heating block arranged on the inner wall of the gas outlet pipe can directly heat exhausted gas, and the water vapor condensation phenomenon caused by gas temperature reduction is effectively prevented.

The invention discloses a track dewatering and anti-icing safety protection device for detecting a shed exit, relates to the technical field of track deicing devices, and aims to solve the problem that a locomotive wheel fault online detection system lacks a special dewatering device in an extremely cold environment. The trackside water removal assembly and the rail web water removal assembly are each provided with a heating source, and the heating sources are externally connected with a power source. The rail bottom support is installed at the rail bottom of the steel rail and extends towards the two sides of the steel rail. The trackside water removal assemblies are fixedly connected with the rail bottom support, extend to the position above the rail bottom of the steel rail and are symmetrically arranged on the two sides of the steel rail. The fixed end of the rail web water removal assembly is fixedly connected with the trackside water removal assembly, and the heating end of the rail web water removal assembly extends to the waist of the steel rail. The rail bottom support, the trackside water removal assembly and the rail web water removal assembly are arranged in the length direction of the steel rail. According to the deicing device, the track at the exit of the detection shed and the ground on the two sides of the track in the extremely cold environment are dewatered and deiced, and the driving safety is guaranteed.

The invention provides a differential relay valve and a drainage method thereof. The differential relay valve comprises a valve body and a drainage mechanism, the valve body is provided with a second connector used for being connected with a hand brake valve, a cavity A communicated with the second connector is formed in the valve body, and an exhaust port is formed in the lower end of the valve body. The drainage mechanism comprises a shell, a fourth piston sliding on the inner wall of the shell and a third piston arranged in the fourth piston in a sliding mode, a cavity D is formed between the upper end of the third piston and the shell, a cavity E is formed in the third piston, a second air inlet valve is formed between the third piston and the fourth piston, and a second air outlet valve is formed in the shell. A second exhaust valve is formed between the lower end of the third piston and the shell, a channel opening is formed in one side wall of the shell, and the channel opening is communicated with the exhaust port; and the cavity A is communicated with the cavity D. The differential relay valve solves the problems that the control end of the differential relay valve has no drainage capacity and is frozen when used in a low-temperature environment, and the use reliability of the differential relay valve is guaranteed.

The invention provides a temperature control device and method for an intake manifold, and belongs to the technical field of engines. One end of the intercooling bypass branch is communicated with the intake manifold; the other end of the intercooler and the other end of the intercooling bypass branch are respectively communicated with the supercharger through the two-way butterfly valve; the controller is used for determining the pre-control opening degree of the two-way butterfly valve based on the target inter-cooling efficiency and the air inlet flow of the engine, determining the temperature deviation after inter-cooling based on the temperature deviation between the target air inlet manifold temperature and the actual air inlet manifold temperature, determining deviation PI control parameters based on the temperature deviation after inter-cooling, and controlling the pre-control opening degree of the two-way butterfly valve according to the deviation PI control parameters. And controlling the opening degree of the two-way butterfly valve by adopting a PID control strategy based on the pre-control opening degree and the deviation PI control parameter of the two-way butterfly valve. By additionally arranging the two-way butterfly valve, the technical problem that according to an existing scheme, the gas inlet temperature of an engine cannot be rapidly increased, and consequently a gas engine mixer and an EGR valve are frozen is solved.

The present invention provides an anti-icing coating and a wind turbine blade having the anti-icing coating. The anti-icing coating has excellent damping absorption capacity, and includes: a damping absorption layer having a damping absorption material; a hydrophobic layer formed on the upper surface of the damping absorption layer, wherein the hydrophobic layer includes at least one or more polymer hydrophobic materials. Polymer hydrophobic materials, such as low surface energy polymers, can reduce the adhesion of ice on the surface of the hydrophobic layer due to the hydrophobic properties of the material itself, thereby inhibiting the crystallization and nucleation of water droplets on the surface of the anti-icing coating, while the damping absorption material can convert vibration mechanical energy into internal energy through slight deformation of the material, reduce the erosion of the substrate by wind, sand and rain, reduce maintenance costs, and extend service life, thereby being able to take into account both damping performance and anti-icing performance.

The utility model provides an anti -icing water -saving fog -eliminating cooling tower relates to the technical field of cooling tower, wherein, first filler module includes: a plurality of first filler piece and second filler piece of alternate layering, in the first filler piece and second filler piece between first flow path is formed in the layering direction, second flow path is formed between second filler piece and first filler piece, second filler module is a plurality of filler piece layering, only forms one flow path, in the layering direction, first filler module and the tower wall inner surface between anti -icing water -saving fog -eliminating cooling tower has end isolated area, plays anti -icing and water -saving fog -eliminating function.

The invention belongs to the technical field of automobile anti-freezing, and provides a concealed outer handle icebreaking device, an automobile and an icebreaking method.The device comprises a heating assembly, a ventilation assembly and a control unit; the heating assembly is installed on the inner side face of the hidden outer handle, the ventilation assembly is installed on the heating assembly and used for transmitting heat of the heating assembly into the outer handle through airflow, the ventilation assembly and the heating assembly are connected with the control unit, and the control unit is used for controlling the heating assembly and the ventilation assembly to work. Through the synergistic effect of the heating assembly (such as a heating coil) and the ventilation assembly (such as a fan), the device can quickly generate heat and effectively transfer the heat to the interior of the hidden outer handle and a gap between the hidden outer handle and an external vehicle door through airflow. The S-shaped arrangement of the heating coils is beneficial to uniform distribution of heat, and the directional blowing of the fan enhances the convection effect of the heat, so that ice and snow can be quickly melted, and the ice breaking efficiency is improved.

The invention is suitable for the technical field of low-temperature liquid storage equipment, and provides an ultralow heat transfer structure and pipeline system for an automotive LNG cylinder. The ultralow heat transfer structure comprises a supporting ring and an outer supporting neck pipe; a glass fiber reinforced plastic supporting block is arranged on the inner wall of the outer supporting neck pipe, and an inner supporting neck pipe is arranged in the outer supporting neck pipe. A glass fiber reinforced plastic supporting ring is arranged in the supporting ring, and the inner supporting neck pipe sequentially penetrates through the glass fiber reinforced plastic supporting ring and the glass fiber reinforced plastic supporting block. A first check ring and a second check ring are arranged on the inner supporting neck tube; a cover plate is arranged at the outer end of the supporting ring. Meanwhile, a pipeline system is optimized and integrated, the function of a liquid outlet pipeline is combined into a pressurizing pipeline, and only a liquid adding pipeline and a gas phase pipeline are reserved to penetrate out of a front supporting neck pipe, so that the problem of icing caused by cold accumulation of a valve distribution head is thoroughly solved. The heat leakage of the gas cylinder is effectively reduced, the heat preservation performance is improved, the pipeline layout is simplified, and the manufacturing cost is reduced.

The present invention provides a deicing device, a heat exchanger and a compressor, which relates to the technical field of compressors and solves the technical problem that condensation and ice formation in a water receiving tray can easily damage the heat exchanger. The deicing device includes a first deicing component and a second deicing component. The first deicing component is arranged at a position to be deiced, and can make the ice detach from the position to be deiced to a free state; the second deicing component is movably arranged at the position to be deiced, and can remove the ice in a free state from the position to be deiced; the first deicing component includes a resonant piezoelectric sheet and a power supply device, and the power supply device is electrically connected to the resonant piezoelectric sheet; the second deicing component includes a deicing brush and a driving device connected to the deicing brush in a transmission manner, and the driving device can drive the deicing brush to move back and forth at the position to be deiced. The present invention can remove and remove the ice on the water receiving tray of the heat exchanger, solve the problem of ice formation when the heat exchanger is operating in cold areas, and ensure the stability of the heat exchange performance of the unit when operating in cold areas.

The utility model provides an anti -icing water -saving fog -eliminating cooling tower relates to the technical field of cooling tower, wherein, first packing module includes: a plurality of first packing piece and second packing piece of alternate layering setting, in the first packing piece and second packing piece between first flow path is formed in the layering direction, second flow path is formed between second packing piece and first packing piece, and second packing module is a plurality of packing piece layering, and only forms one flow path, in the layering direction, first packing module and the air preheating area between the tower wall inner surface of anti -icing water -saving fog -eliminating cooling tower, play anti -icing and water -saving fog -eliminating function.

The utility model discloses a water-gas separation device, muffler assembly and vehicle, water-gas separation device includes intake passage, exhaust passage, drainage passage, the outlet of intake passage is communicated with the inlet of exhaust passage and the inlet of drainage passage, exhaust passage and intake passage form first included angle, the exhaust passage is communicated with the outlet of drainage passage, exhaust passage and intake passage form first included angle, and the exhaust passage is communicated with the outlet of drainage passage. A second included angle is formed between the drainage channel and the air inlet channel, the first included angle is smaller than the second included angle, and the outlet sectional area of the drainage channel is smaller than the outlet sectional area of the exhaust channel. According to the water-gas separation device, separation between liquid water and gas is achieved, high separation efficiency is achieved, the separated liquid water can be subjected to other treatment or directly discharged out of a vehicle, and therefore the icing problem is avoided, and particularly continuous and normal operation of a fuel cell vehicle type can be guaranteed.

The invention provides a post-intercooling temperature control device and method, and belongs to the technical field of engines, and the control device comprises an intercooler, an intercooler, an intercooler, an intercooler, an intercooler and a controller, one end of the intercooling bypass branch is communicated with the supercharger through an intercooling loop; the two-way butterfly valve is arranged on the downstream of the intercooler, a first airflow channel of the two-way butterfly valve is communicated with the other end of the intercooler, a second airflow channel of the two-way butterfly valve is communicated with the other end of the intercooling bypass branch, and the output end of the two-way butterfly valve is communicated with the input end of the engine through an air inlet manifold; and the controller is used for determining an output value of the controller based on a difference value between the actually-measured post-intercooling temperature and the target post-intercooling temperature, performing PID adjustment on the opening degree of the two-way butterfly valve based on the output value and the preset opening degree of the two-way butterfly valve, and adjusting the actually-measured post-intercooling temperature to the target post-intercooling temperature. The two-way butterfly valve is additionally arranged, so that the purpose of completely eradicating the freezing problem of the gas engine in a low-temperature environment and improving the economical efficiency is achieved.

The utility model discloses a dry and wet dual-purpose composite closed cooling tower which comprises a cooling tower main body, a finned tube bundle and a cooling coil which are arranged up and down are arranged in the cooling tower main body, a connecting tube is arranged at the side part of the cooling tower main body, and an inlet tube and an outlet tube of the finned tube bundle and an inlet tube and an outlet tube of the cooling coil are connected with the connecting tube; wafer butterfly valves are mounted on an inlet pipe and an outlet pipe of the finned tube bundle, and wafer butterfly valves are mounted on an inlet pipe and an outlet pipe of the cooling coil; a wafer butterfly valve is mounted at the upper part of the connecting pipe and is positioned between an inlet and an outlet of the finned tube bundle; a wafer butterfly valve is installed on the lower portion of the connecting pipe and located between an inlet and an outlet of the cooling coil pipe. According to the cooling tower provided by the utility model, dry operation or wet operation can be switched at any time, a proper operation mode can be determined according to the water outlet temperature, and water and electricity are saved; the finned tube bundle or the cooling coil can be conveniently maintained, and system operation is not affected in the maintenance process.

The invention provides a heating method and device of a hydrogen circulating pump, a fuel cell system and a vehicle, the method is applied to the technical field of fuel cells, and the method comprises the following steps: when the current rotating speed of the hydrogen circulating pump is smaller than a preset rotating speed and a first duration when the current rotating speed is smaller than the preset rotating speed is longer than a preset duration; determining the shortest total deicing time according to the temperature interval of the current environment temperature, determining the optimal hydrogen pressure interval according to the shortest total deicing time, determining the target heating temperature and the target valve opening and closing frequency according to the current environment temperature, the optimal hydrogen pressure interval and the shortest total deicing time, and heating the cooling liquid according to the temperature. And after the temperature of the cooling liquid reaches the target heating temperature, the valve frequency is adjusted according to the target valve opening and closing frequency till the current rotating speed of the hydrogen circulating pump is larger than or equal to the preset rotating speed. According to the method, the problem that the hydrogen circulating pump is frozen after cold start of the fuel cell system can be effectively avoided, so that the system can be normally started in a low-temperature environment.