27results about How to "Reduce icing" patented technology

The invention provides a winter protection device and method for a steel pipe type water level gauge platform, and the protection device comprises a protection steel ring which sleeves a steel pipe and can slide up and down along the steel pipe along with the height of the water level; the outer wall of the protective steel ring is connected with a first floating body, so that the protective steel ring floats on the water surface; the air bag mechanism is arranged on the steel pipe in a sleeving mode and located in the protective steel ring; the air bag mechanism can float on the water surface and can slide up and down along the steel pipe along with the water level change; the air bag mechanism can be inflated or deflated so as to realize volume change; an annular protection area is formed in the area between the air bag mechanism and the protection steel ring, and the air bag mechanism is connected with an inflation and deflation executing mechanism with a controller to achieve inflation and extrusion of the annular protection area. The invention has the advantages of simplicity, high efficiency, low cost and high practicability, and can play a good protection role.

The invention provides a control device for an intercooling bypass and an EGR cooler bypass in an engine, and belongs to the technical field of engines, the control device comprises a multi-way butterfly valve provided with at least three airflow channels, and the input end of the multi-way butterfly valve is communicated with a supercharger; the EGR cooler is arranged on the EGR cooling branch, one end of the EGR cooling branch communicates with the EGR loop, and the other end of the EGR cooling branch communicates with the intake manifold; one end of the EGR bypass branch communicates with the EGR loop through a first airflow channel of the multi-way butterfly valve, and the other end of the EGR bypass branch communicates with the EGR cooling branch and is located between the EGR cooler and the intake manifold; one end of the inter-cooling bypass branch is communicated with the intake manifold, and the other end of the inter-cooling bypass branch is communicated with a second airflow channel of the multi-way butterfly valve; and one end of the intercooler communicates with the intake manifold, and the other end of the intercooler communicates with the third airflow channel of the multi-way butterfly valve. By additionally arranging the multi-way butterfly valve, the purpose of adjusting the cooling strategies of the EGR system and the intercooling system at the same time is achieved.

The invention relates to the technical field of coatings, in particular to a photo-thermal hydrophobic coating and application thereof on an asphalt pavement. The photo-thermal hydrophobic coating is prepared from the following raw materials in parts by weight: 1 to 1.5 parts of multiwalled carbon nanotubes, 3 to 4 parts of titanium dioxide, 6 to 7 parts of lauric acid and 100 parts of absolute ethyl alcohol. The anti-icing coating with a rough surface is constructed on the road surface by using the multi-walled carbon nanotubes, titanium dioxide and lauric acid, the anti-icing coating has hydrophobic anti-icing performance and photo-thermal anti-icing performance at the same time, and the effects of inhibiting the formation of road icing and accelerating the thawing of the road icing can be achieved by fully utilizing solar energy. In an extremely low-temperature environment, the coating still can obviously delay the icing of water on the surface of the coating, and has good anti-icing performance; under the condition of weak light, the hydrophobicity of the coating can still play an ice inhibiting role, and all-weather anti-icing and deicing are achieved.

The invention relates to a gas heavy truck high cold environment EGR control device and method, and relates to the field of engines, the gas heavy truck high cold environment EGR control device comprises an engine, an EGR cooler and an EGR valve, the EGR valve is arranged at an outlet of the EGR cooler, a valve seat of the EGR valve is provided with a circulating water heating device, an inlet of the EGR valve is provided with an EGRT temperature sensor, and an outlet of the engine is provided with a water temperature sensor; when an engine operates, the EGR valve is continuously heated through engine circulating water, when the environment temperature is high or the water temperature of the engine is high, the temperatures of the EGR valve and pipelines in front of and behind the EGR valve are high, water in EGR waste gas exists in a water vapor state, and an EGR system works normally. In the cold starting process of an engine or long-time idling or long-time reverse towing operation in the high and cold environment, condensate water and condensate water icing of EGR waste gas on the surfaces of cold parts are reduced, condensate water entering an air cylinder is reduced, and the influence of the EGR waste gas condensate water and condensate water icing on engine operation is reduced to the maximum extent.

The utility model discloses an overhead cable surface deicing device, and relates to the technical field of overhead cables. An overhead cable surface deicing device comprises a frame body, a fixing frame is arranged at the lower end of the frame body, two rolling wheels are symmetrically installed in each of the frame body and the fixing frame, two motors are fixed to the side face of the fixing frame, the output ends of the motors extend into the fixing frame to be fixedly connected with the rolling wheels, belt wheels are fixed to the output ends of the motors, and rotating shafts are fixed to the inner wall of the frame body. A fixing mechanism is arranged between the fixing frame and the frame body, and a deicing mechanism is arranged between the frame body and the rolling wheels. The frame body and the fixing frame are fixed to the cable through the fixing mechanism, so that the rolling wheels make contact with the cable, falling of the rolling wheels is reduced, deicing of the cable is facilitated, moving of the frame body and the fixing frame is more stable, adhesion of ice water on the cable is reduced through the deicing mechanism, the situation that the ice water is secondarily iced on the surface of the cable is reduced, and use of the cable is facilitated.

The utility model relates to the technical field of anti -icing outdoor bolt, specifically relates to a kind of anti -icing outdoor bolt, comprising: fire hydrant mechanism, the fire hydrant mechanism is equipped with anti -icing mechanism, the lower of fire hydrant mechanism is equipped with sealing mechanism;The fire hydrant mechanism includes fire hydrant shell, the upper end of fire hydrant shell is fixed with sealing top cover, and fire hydrant shell is fixed with fire hydrant inner shell inside.This utility model can remove the plugging of water outlet hole by sealing sleeve moving with heat preservation cover, make residual water in fire hydrant inner shell discharge quickly through water outlet hole, reduce the possibility of icing from source, the cooperation of sealing ring and movable rod can also quickly plug water outlet hole when using, ensure normal water outlet function, and the outer surface of the connecting shell of sealing mechanism is embedded with heating ring, can continuously heat the connecting place with underground pipeline, avoid the connecting part icing rigid under low temperature, ensure that device can still be normally opened and operated in severe cold environment, guarantee emergency use demand.

A pneumatic deicing device for an aircraft propeller comprises a waste gas filter, a pressurization gas storage / exhaust / detection / distribution assembly and an expansion deicing pipe, and the expansion deicing pipe symmetrically arranged on the upper / lower surface of the front edge comprises a first expansion air bag used for being attached to the surface of the front edge of the propeller. A first vent hole is formed in the plane part of the first expansion airbag, a plurality of second expansion airbags are arranged on the cambered surface part of the first expansion airbag, and a corresponding second vent hole is formed in the cambered surface part covered by each second expansion airbag; a first air pipe and a second air pipe are arranged in the aircraft propeller, one end of the first air pipe and one end of the second air pipe are connected with the air supply hole of the distribution assembly, the other end of the first air pipe is connected with the first vent hole, and the other end of the second air pipe is connected with the second vent hole. The double-layer design is adopted in the expansion deicing pipe, and aiming at different icing scenes, fixed-point deicing and comprehensive deicing can be carried out, and the mode that the first expansion air bag is expanded firstly to carry out primary deicing and the second expansion air bag is expanded later to carry out secondary deicing can be achieved.

The utility model discloses an anti-freezing protection device of a cross-flow cooling tower, which comprises a tower body, a movable plate is fixedly mounted at the front end of the tower body, a connecting block is fixedly mounted on the right side of the movable plate, and a sliding groove is fixedly connected to the right side of the connecting block; the fixed block is fixedly installed at the upper end of the left side of the movable plate, a gear is fixedly installed behind the fixed block, and the left side of the gear is connected with a lifting plate in an engaged mode; the shell is fixedly installed on the left side of the lifting plate, a temperature sensor and air inlets are fixedly installed on the left side of the shell, and the air inlets are fixedly installed on the two sides of the outer end of the tower body; and the spraying pipeline is fixedly installed in the tower body, and the problems that in the background technology, cold air enters the cooling tower through the air inlet, so that a water source in the cooling tower is cooled, the air inlet is frozen, the air inlet is blocked, and the air inlet is subsequently closed and cannot be normally used are solved.

The utility model discloses a pipe network anti-icing device, and relates to the technical field of pipe network anti-icing. The pipe network anti-icing device comprises a protection assembly, a heat preservation assembly, an electric heating pipe and an automatic clamping assembly, the protection assembly comprises a protection shell A and a protection shell B, the bottom of one side of the protection shell A is hinged to the top of one side of the protection shell B, a connecting plate A is fixedly installed on the outer wall of one side of the protection shell A, and a connecting plate B is fixedly installed on the outer wall of one side of the protection shell B. According to the pipe network anti-icing device, the protective shell A and the protective shell B can be conveniently and tightly closed together, the anti-icing device can be conveniently installed on the surface of a pipeline, heat preservation can be conducted on the pipeline through the flame-proof heat preservation cotton A and the flame-proof heat preservation cotton B, reduction of the water temperature in the pipeline is slowed down, and therefore the water icing phenomenon is reduced; and the pipeline can be heated, the water temperature in the pipeline is increased, and the situation that water is directly frozen due to the low temperature is avoided.

The embodiment of the application provides a multi-split air conditioner and a control method thereof, and relates to the technical field of air conditioners. The multi-split air conditioner comprises: at least one indoor unit; a main outdoor unit; at least one auxiliary outdoor unit; the auxiliary outdoor unit comprises: a first control valve configured to adjust a refrigerant distribution path of the auxiliary outdoor unit; and a controller configured to: when the multi-split air conditioner is in a small-load low-temperature refrigeration operation mode, control the first control valve of the auxiliary outdoor unit in a standby state to be opened, so that the auxiliary outdoor unit in the standby state is switched to an auxiliary evaporator mode. The above scheme can reduce the probability of abnormality of the multi-split air conditioner in small-load refrigeration operation, so as to meet the demand of a user for small-load refrigeration in a low-temperature environment.

An experimental apparatus and method for evaluating the dynamic anti-icing performance of superhydrophobic materials are disclosed, relating to the field of superhydrophobic material anti-icing technology. The technical solution includes a test section containing a model. A substrate is connected to the outer surface of the model, and a heating film is placed between the substrate and the model. The beneficial effects of this technical solution are: by adding a heating film under the substrate, the initial freezing time in ultra-low temperature experiments is effectively delayed, ensuring that the test piece does not immediately freeze when the ultra-low temperature is activated, thus guaranteeing the accurate acquisition of the initial freezing time. Simultaneously, by combining a high-speed camera and a thermal imaging camera, the freezing process and degree can be visually observed, providing a visual basis for comprehensive evaluation. When the leading edge of the substrate freezes, the power of the heating film is increased to melt the ice layer, and the overflow water re-condenses into overflow ice away from the heating zone. By measuring the relative position of the overflow ice and the reference chord length, the surface lubrication performance of the material can be further evaluated.

The utility model relates to the technical field of touch slide wires, in particular to a touch slide wire sheath heat preservation mechanism which comprises a sheath, a guide rail and a heating assembly, the sheath is provided with a through groove penetrating through the sheath in the length direction of the sheath, and one side of the sheath is provided with a through opening communicated with the through groove; the guide rail and the heating assembly are both installed in the penetrating groove, the heating assembly heats to increase the temperature of the interior of the penetrating groove in the sheath, and in cold weather, the interior temperature of the penetrating groove is kept through heating of the heating assembly; the guide rail is not easy to deform or harden, so that the conductive performance of the guide rail is maintained, the guide rail stably supplies power to a current collector, and the guide rail is not easy to freeze, so that the brush shell frame still stably slides in cold weather.

The present application relates to the technical field of gate valves, and discloses a low-temperature wedge-type single-box gate valve, including a valve body, a support frame provided on the valve body, a valve stem slidably connected in the support frame, a sealing block provided between the valve stem and the support frame, and a cooling ring provided on the support frame, the cooling ring surrounds the circumference of the support frame, and the diameter of the cooling ring is larger than the diameter of the support frame. In the present application, the cooling ring surrounds the circumference of the support frame, and the diameter of the cooling ring is larger than the diameter of the support frame, so that the low temperature of the medium needs to be transferred on the cooling ring, increasing the transfer area of ​​heat exchange, so that the low temperature of the medium can absorb sufficient heat during the heat exchange process, greatly increasing the temperature of the sealing block after heat exchange, reducing the phenomenon of icing of the sealing block, thereby enabling the sealing block to be used normally and allowing a stable seal between the valve stem and the support frame.

The invention relates to the technical field of air refrigeration equipment, in particular to an anti-icing control method, electronic equipment and an air circulation refrigeration system. The air circulation refrigerating system comprises an air flow path for treating a high-temperature and high-pressure air source and an anti-icing flow path, the anti-icing flow path communicates with the high-temperature and high-pressure air source, and the anti-icing flow path is used for conducting anti-icing treatment on the air flow path under the condition that anti-icing treatment needs to be conducted. The anti-icing control method comprises the steps that environment parameters in the operation process of the air circulation refrigeration system are obtained; and under the condition that it is determined that the air flow path needs to be subjected to anti-icing treatment according to the environment parameters, an anti-icing control process is executed, and in the anti-icing control process, a high-pressure and high-temperature air source is controlled to be introduced into the anti-icing flow path so as to carry out anti-icing treatment on the air flow path. According to the air circulation refrigerating system, the icing time in the air flow path can be effectively slowed down through the anti-icing flow path, icing in the air flow path is prevented, and therefore the system reliability of the air circulation refrigerating system is improved.

The utility model belongs to the technical field of air conditioning equipment, and discloses a low-temperature air conditioning unit access door structure and a low-temperature air conditioning unit. The access door structure of the low-temperature air conditioning unit comprises an air conditioning unit panel, a door body and a temperature sensing element. Wherein the door body is rotationally connected with the air conditioning unit panel, a mounting cavity is formed in the door body, and a heating piece is arranged in the mounting cavity. The temperature sensing element is arranged on the air conditioning unit panel and used for detecting the temperature of the air conditioning unit panel. According to the access door structure of the low-temperature air conditioning unit, the heating piece is arranged on the door body, when the temperature of the door body is too low, the door body is heated, the door frame is prevented from frosting or freezing, and the problems of mildewing or difficult overhaul are avoided. And the mounting cavity is formed in the door body, so that the heating piece can be buried in the door body, and a good heating effect is achieved. The temperature sensing element is arranged on the door frame to measure the temperature of the door frame, and the heating element adjusts the temperature according to the temperature of the door frame, so that the door frame can be prevented from forming a cold bridge, and energy waste can be reduced.

The pneumatic-electric complementary heat pump comprises a machine body, a water pan is arranged in the machine body, and a plurality of drainage holes are formed in the bottom of the water pan; at least one first electric tracing band; the first electric tracing band is arranged in the water pan and surrounds the plurality of drainage holes; a second electric tracing band; the second electric tracing band is located in the drainage hole and attached to the inner wall of the drainage hole. The first electric tracing band is arranged on the peripheries of the multiple drainage holes, the phenomenon of freezing in the water receiving disc in the low-temperature cold environment is reduced in the mode that heating is conducted in the water receiving disc through the first electric tracing band, and condensate water in the water receiving disc can be smoothly drained out of the machine body. A second electric tracing band is arranged in the drainage hole, so that the drainage hole is directly heated; even if the water drainage hole is iced, ice in the water pan can be melted and discharged through cooperation of the second electric tracing band and the first electric tracing band.

The invention belongs to the technical field of transformer substations, and particularly relates to a box-type transformer substation shell which comprises a sweeping assembly, a heat dissipation assembly and a protective shell, the sweeping assembly is located at the top end of the protective shell, the heat dissipation assembly is located at the bottom of the protective shell, the protective shell comprises a top supporting frame, and a plurality of top plates are connected to the upper surface of the top supporting frame in series. The sweeping assembly comprises a sweeping plate, the effect of controlling shoveled accumulated snow to be away from the protective shell is achieved by controlling movement of a top cover of the protective shell, when the pressure of a top supporting frame is increased, the top supporting frame controls a supporting piece to move downwards, an elastic reset piece is compressed, and a starting column rotates to control a driving gear to rotate; the driving gear and the driven gear are not meshed initially, and then due to rotary meshing of the top cover, the pushing lead screw is controlled to rotate reversely, an output shaft of the hydraulic rod controls the top cover to turn over, and the sweeping plate gradually moves downwards along the top cover to remove snow accumulated on the surface of the top cover.

The utility model relates to the technical field of water meter boxes, in particular to a steel fiber concrete water meter box with a good anti-seismic effect, which comprises a base and a stabilizing device, a box body is arranged on the surface of the base, the stabilizing device is arranged on the surface of the box body, the stabilizing device comprises a gasket, the gasket is fixedly connected with the base, and a rod body is fixedly connected with the surface of the gasket. The surface of the rod body is rotationally connected with a knob, one side of the knob is fixedly connected with a supporting rod, one side of the box body is fixedly connected with a fixing block, a first hole is formed in the surface of the fixing block, the rod body is inserted into the first hole in the surface of the fixing block, an arc-shaped hole is formed in the side, close to the supporting rod, of the fixing block, and the supporting rod is inserted into the arc-shaped hole. And by arranging the stabilizing device, shaking of the box body is conveniently reduced, the shock resistance of the equipment is improved, the stability of the equipment is improved, meanwhile, the equipment is convenient to disassemble and maintain, and the usability of the equipment is improved.

The invention discloses a foliar fertilizer for drone flight defense and a preparation process and application thereof, belonging to the technical field of foliar fertilizers. Potassium humate, potassium dihydrogen phosphate, ammonium molybdate, zinc sulfate, manganese sulfate and water are added into a stirring kettle, stirred and mixed, a chelating agent is added into the stirring kettle and stirred and mixed continuously, and then an enzymatic amino acid solution, aminoethyl ester, a wetting agent, a moisturizing agent and a moisturizing auxiliary agent are added into the stirring kettle, and stirred and mixed to obtain the crop foliar fertilizer for drone flight defense; by adding the crop foliar fertilizer with nutrients such as potassium humate and functional auxiliary agents such as a moisturizing auxiliary agent, the crops are helped to absorb nutrients quickly, the hydrophilic modifier improves the water holding capacity and stability of the moisturizing auxiliary agent in the crop foliar fertilizer, and helps to adsorb more water molecules to form stable bound water, inhibit the growth of ice crystals, reduce the freezing point, delay ice formation, and increase the application effect of the crop foliar fertilizer under cold conditions.

The utility model discloses a valve body with a multifunctional filtering structure, which relates to the technical field of valve bodies and is characterized by comprising a valve body shell, a valve plate is arranged on one side of the valve body shell, a first filtering plate and a second filtering plate are arranged on the other side of the valve body shell, a sliding groove is arranged on the inner wall of the valve body shell, and the sliding groove is communicated with the valve body shell. The first filter plate and the second filter plate are each provided with a lifting rod, a groove is formed in the bottom of the valve body shell, and a heating wire is arranged in the groove. The filter holes with different hole diameters are formed in the first filter plate and the second filter plate, impurities with different particle sizes can be filtered, the filter efficiency is improved, meanwhile, the first filter plate and the second filter plate slide up and down to cut up blocked impurities, the maintenance requirement is reduced, the self-cleaning capacity of the valve body is improved, and the service life of the valve body is prolonged. And through the design of the bottom heating wire, the problem that water flow in the valve body freezes can be solved.

The invention relates to the technical field of LNG sampling, and discloses a precise controllable LNG sampling gasification device which comprises a sampling pump, a sampling pipe is arranged at one end of the sampling pump, a conveying pipe is arranged at the other end of the sampling pump, a gasifier is arranged at the end, away from the sampling pump, of the conveying pipe, and an exhaust pipe is arranged at the top end of the gasifier. And a heater is arranged in the reservoir at the lower part of the gasifier. A motor drives a driving rod to rotate, a vertical rod is driven to rotate through transmission of a bevel gear, a double-sided gear and a driven wheel, then a top plate and a plurality of spiral stirring rods are driven to rotate around the vertical rod, shifting rods rotate along with the driving rod to indirectly shift bottom plates on the two sides, and then threaded rods and the spiral stirring rods are driven to rotate; the effect of uniformly mixing the liquefied natural gas is achieved, the centrifugal force of traditional stirring is broken through, separation of the natural gas due to centrifugation is avoided, and water bath heating is more uniform.

This application discloses a door body and a storage device, belonging to the field of refrigeration technology. The door body includes: a door shell; a door liner, spaced apart from the door shell along a first direction; and a handle trim strip connected between the door shell and the door liner, forming a handle groove for operation, and including a first sub-trimmed strip and a second sub-trimmed strip connected to each other. The first sub-trimmed strip is connected to the door shell, and the second sub-trimmed strip is connected to the door liner. The first sub-trimmed strip includes a first overlapping plate extending along a second direction, and the second sub-trimmed strip includes a second overlapping plate extending along the second direction. The first overlapping plate and the second overlapping plate overlap along a third direction. Through the above-mentioned split handle trim strip design, combined with the overlapping cooperation of the first overlapping plate and the second overlapping plate, the bending force caused by the internal and external temperature difference is effectively dispersed and offset, significantly improving the bending resistance of the door body, greatly reducing the risk of bending deformation of the door body, and enhancing the sealing between the door body and the door frame.

The marine electromagnetic heat treatment equipment easy to store comprises an upper electromagnetic reaction mechanism, a lower electromagnetic reaction mechanism, a first storage cavity, a second storage cavity, a first driving mechanism and a second driving mechanism, and the first storage cavity and the second storage cavity are used for storing the upper electromagnetic reaction mechanism and the lower electromagnetic reaction mechanism correspondingly; the upper electromagnetic reaction mechanism is connected with a first driving mechanism to realize the movement from the horizontal direction to the vertical direction, and the lower electromagnetic reaction mechanism is connected with a second driving mechanism to realize the movement from the horizontal direction to the vertical direction. According to the marine electromagnetic heat treatment equipment, besides better ship icing treatment, side face heat treatment storage arrangement can be more easily carried out, besides ship deck ice melting treatment, side face ship body ice melting treatment can be carried out in the storage process, the icing treatment effect of multiple side faces is achieved, and when moving is carried out, the ship deck ice melting treatment can be conveniently carried out. Icing can be treated separately, and the heat treatment effect is better utilized.

The invention provides a control device and method for the air inlet temperature of a methanol compression ignition engine, and belongs to the technical field of engines, the control device comprises an intercooler arranged on an intercooling loop, and the intercooling loop is provided with a first valve; the intercooler bypass branch is provided with a second valve; the EGR cooler is arranged on the EGR loop, and a third valve and a fifth valve are arranged on the EGR loop; the EGR bypass branch is provided with a fourth valve; the controller is used for controlling one of the first valve and the second valve to be opened and the other valve to be closed under the cold start working condition or the preset low-load working condition, adjusting the opening degree of the fourth valve based on the air inlet temperature target value and controlling the third valve and the fifth valve to be closed. By arranging the intercooling bypass, the problems that when an existing methanol compression ignition engine combusts pure methanol fuel in a low-temperature environment, cold start stable ignition cannot be achieved, and continuous stable ignition and stable combustion cannot be achieved are solved.

The invention provides a Pediococcus pentosaceus strain and application thereof, the Pediococcus pentosaceus is Pediococcus pentosaceus Wuzhe10, the preservation number is CGMCC No.33703, and the Pediococcus pentosaceus is preserved in the China General Microbiological Culture Collection Center on March 3, 2025. The Pediococcus pentosaceus strain has the advantages that the preservation number is CGMCC No.33703, and the preservation number is CGMCC No.33703; the pediococcus pentosaceus provided by the invention can be used for providing safe, high-energy and stable-storage high-quality silage for low-temperature regions by increasing beneficial metabolites, inhibiting the generation of mold of the silage, improving the anti-freezing capability of the silage and remarkably reducing the freezing of the center of the silage, and is beneficial to guaranteeing the supply of livestock feed in winter; and the method has important popularization and application values.

This utility model relates to the field of cooling tower technology and discloses a combined cooling tower, including a main frame with insulated side walls. The main frame contains a dry cooling chamber and a wet cooling chamber. The dry cooling chamber includes a first chamber and a second chamber. An air-cooled heat exchanger is housed in the first chamber, and air inlets are located on the side walls of both chambers. A first sealing mechanism for closing the air inlets is provided on the air inlets. The wet cooling chamber includes a third chamber and a fourth chamber. An air outlet is located at the upper end of the third chamber, and an evaporative heat exchanger connected to the air-cooled heat exchanger is located inside the third chamber. Compared with existing technologies, this utility model adopts a combined dry and wet cooling system, effectively improving heat exchange efficiency and providing antifreeze protection to ensure safe operation of the cooling tower and reduce costs.