46 results about "Cold area" patented technology

The present disclosure relates to a cold-resistant medium-voltage power cable, includes a cable body, wherein a bending protection sleeve is slidably sleeved over an outer end of the cable body. Through the cooperative use of the bending protection sleeve, the clamping disc, the flexible electric heating patch, and the bending sensing assembly, on one hand, the arrangement reduces the difficulty in bending the cable body during installation, prevents damage to the cable body caused by excessive bending, and improves the efficiency and safety of installing the cable body in cold regions; on the other hand, the arrangement enables heating treatment at a bent installation section of the cable body. This configuration not only enhances flexibility of the cable body during installation, reducing damage to internal conductive cores of the cable body, but also provides continuous thermal protection to the bent installation section during subsequent operation of the cable body.

The utility model relates to air conditioning technical field especially suitable for cold region's fresh air humidification device. A kind of fresh air humidification device suitable for cold region, including first water tank, water flow passage, water inlet, drain, humidification grid, second water tank, fixed part, its characterized in that, humidification grid includes first humidification material, second humidification material. The device is set in fresh air heat recovery unit inside, user can combine own demand, humidification function is opened at any time, in humidification process, water flow is mainly distributed in humidification material internal infiltration humidification material, humidification material outer surface will not produce the water flow of trickling, avoids that air supply airflow will drop into indoor.

A ventilated floor system and its operation control method for ultra-low energy consumption residential buildings in cold regions are disclosed. The system comprises a ventilation system and a radiant heated floor. The radiant heated floor includes, from bottom to top, an insulation layer, a middle layer, and a floor surface layer. The middle layer contains an electric heating film or hot water pipe and ventilation ducts. The ventilation system includes an air supply shaft, a fresh air supply system, an indoor return air system, and a return air shaft. The air supply outlet of the air supply shaft is connected to the ventilation ducts via the fresh air supply system. The ventilation ducts are connected to the return air shaft via fresh air exhaust valves installed on the return air shaft. The indoor return air system is connected to the ventilation ducts, and the ventilation ducts are connected to indoor exhaust vents. An indoor exhaust valve is installed on the ventilation duct connected to the indoor exhaust vents. A portion of the radiant heated floor at the air supply outlet of the air supply shaft serves as a preheating zone for the fresh air supply system during winter. This invention can fully utilize natural cold and heat sources to help reduce building energy consumption and improve user thermal comfort.

The utility model relates to battery technical field discloses a kind of cover plate assembly and battery, cover plate assembly includes: first insulating part, first insulating part includes bottom wall and at least one side wall, side wall is formed into along the direction perpendicular to the plane where bottom wall is, side wall is formed with at least one combination part;Glue layer, at least part of into combination part, or combination part into glue layer;Combination part is suitable for preventing glue layer from moving away from bottom wall in the direction perpendicular to the plane where bottom wall is.The cover plate assembly provided by the utility model makes glue layer and combination part form structural cooperation, stably fixes glue layer on cover plate assembly, that is, play the role of fixed welding slag, while can avoid the situation that protective glue after solidification can fall in severe cold area, guarantee the durability of glue layer, improve safety performance, reduce potential safety hazard.

The utility model relates to a kind of high-efficiency heat-dissipating edge computing box, to the poor heat dissipation effect, loud or complex structure problem of existing edge computing box, including shell and circuit board component, heating element is equipped on circuit board component, shell top plate upper surface has multiple heat dissipation fins, still including the heat plate that heat transfer medium circulates heat dissipation between hot area and cold area, heat plate is fixed on top plate lower surface, lower surface is pasted with heating element, heat plate hot area is close to heating element, cold area is close to top plate.Heat plate liquid working medium absorbs heating element heat and vaporizes to rise to cold area, heat is dissipated through top plate, steam condenses and backflows to hot area to circulate heat dissipation.The utility model realizes efficient heat transfer by heat plate phase change circulation, and heat dissipation effect is good, simultaneously without fan, reduce equipment noise, simplify assembly procedure, save installation space, improve equipment running stability and environmental adaptability.

The application belongs to the technical field of road surface repairing, and particularly relates to a road surface repairing device for high-altitude extremely cold areas, which comprises a road roller, a storage barrel, a heat preservation unit, a measuring unit and a discharge pipe. The measuring unit comprises a mounting frame, an air bag, an articulated frame, a metal sliding block and a pull rod. By utilizing the self-weight of the air bag and the liquid in the air bag, when the bottom of the air bag sinks into a pit, the bottom of the air bag expands and elongates to be attached to the pit, the two sides of the air bag contract, the metal sliding blocks are driven to move close to each other, the resistance value in the circuit connected with the metal rods is changed, the angle at which the valve is opened by the power supply is changed, the volume of the pit is larger, the distance between the two metal sliding blocks is smaller, the current in the circuit is larger, and the angle at which the valve is opened is larger. For a pit with a small volume, the opening angle of the valve is relatively small, and the discharge amount is small. In this way, the problem that a large amount of asphalt and gravel mixture is discharged from the storage barrel in a short time and the excess mixture is wasted or needs to be collected again can be avoided.

This invention discloses an ultra-low temperature cold start thermal management system for hydrogen fuel cell vehicles, relating to the field of thermal management technology for hydrogen fuel cell vehicles. It includes a thermal management platform, which is communicatively connected to the following modules: a temperature monitoring and prediction module, used to monitor the temperature of key internal components of the hydrogen fuel cell using temperature sensors and, in conjunction with a temperature prediction model, predict the temperature change trend inside the fuel cell. This invention utilizes high-precision temperature sensors and a long short-term memory network model to predict the internal temperature change trend of the fuel cell in advance, dynamically adjusting the heating power to ensure that the battery rapidly warms up to a suitable operating temperature in ultra-low temperature environments. This avoids start-up difficulties caused by localized overcooling, significantly shortens the low-temperature start-up time, improves the reliability and stability of the system in extreme environments, and ensures the normal operation of hydrogen fuel cell vehicles in cold regions.

The application relates to an air intake throttle valve, an EGR air intake system, a control method and an engine. The air intake throttle valve comprises a valve body and an air intake channel penetrating through the valve body. The valve body is provided with multiple heating units. At least one heating unit is a water circulation unit, and the rest are electric heating units. The water circulation unit comprises a cooling liquid circulation channel arranged on the valve body and close to a valve plate of the air intake throttle valve. The cooling liquid circulation channel is used downstream of an EGR cooler connected in series with a cooling liquid pipeline of an engine heat dissipation system. The electric heating unit comprises an electric heating temperature control device arranged on the valve body and close to the valve plate of the air intake throttle valve. The air intake throttle valve adopts a cooling liquid and electric heating temperature control device composite heating mode, can realize balanced use of energy consumption, guarantees engine performance, and achieves the purpose of improving the problem that the air intake throttle valve is prone to icing when starting in a cold area in the EGR air intake system.

This utility model belongs to the field of screw conveyor maintenance technology, and specifically relates to a lubrication and maintenance component for the shaft of a screw conveyor. It includes a frame, with a bearing housing fixedly installed inside the right end of the frame, and an output shaft mounted on the bearing housing; an insulated oil tank, fixedly installed on the upper right side of the frame and below the right end of the output shaft; a small oil pump fixedly installed on the front outer wall of the insulated oil tank; a first connecting pipe fixedly connected between the input end of the small oil pump and the oil outlet of the insulated oil tank; and a second connecting pipe fixedly connected between the output end of the small oil pump and the oil inlet of the bearing housing. This utility model significantly reduces shaft wear and bearing jamming caused by lubrication failure, extending the service life of the screw conveyor. It is particularly suitable for long-term stable operation in cold regions or low-temperature workshops, effectively solving the industry pain point of lubricating oil easily solidifying in low-temperature environments.

The application discloses a low-temperature non-electric self-starting hydrogen release device, and mainly comprises a first chamber, a second chamber and a third chamber. The first chamber and the second chamber are communicated through a chamber channel, and the opening and closing of the chamber channel are controlled by a first starting module. Solid-state hydrogen storage material is arranged in the first chamber, and excitation reactants are arranged in the second chamber. When the chamber channel is opened, the solid-state hydrogen storage material contacts the excitation reactants, and hydrogen is released through reaction. Exothermic reactants are arranged in the third chamber, and the exothermic reaction of the exothermic reactants is controlled by a second starting module. The exothermic reaction is used for heating the solidified excitation reactants, so that the excitation reactants are restored to liquid state and participate in the hydrogen release reaction. The hydrogen release device provided by the application can realize fast hydrogen release without electric driving, and is suitable for emergency situations without electricity in high-cold areas. The solid-state hydrogen storage material can store hydrogen for a long time, is high in safety, and has no risk of gas diffusion.

The utility model discloses a high-temperature sterilization device for cubilose fish gelatin products, which comprises a pot body provided with an air pressurizing pipeline and a jacket used for introducing steam; the pot cover is detachably arranged on the pot body in a covering mode, the pot cover and the pot body form a sealed in-pot sterilization space, and a water inlet pipeline is arranged on the pot cover; the rotating column is arranged in the center of the pot body, and the bottom of the rotating column is connected with a rotating motor through a rotating bearing; and the rotary tray is disc-shaped and is used for placing the tank body filled with the cubilose fish gelatin. The water temperature reaches 121 DEG C through pressurization control, the pot is suitable for scenes (such as glass pot cubilose fish gelatin) needing uniform heating and controllable pressure, water in the pot body is stirred through rotation of the rotary tray, the water flowability in the pot body is improved, the water temperature uniformity is ensured, water flow is uniformly distributed around the pot body, local overheating or cold areas are avoided, and the pot is suitable for large-scale production. Meanwhile, the breaking risk of the glass jar is greatly reduced.

Snow removal operations in snowy, cold regions heavily rely on visual patrols and empirical rules, making it difficult to fully understand the relationship between snowfall and snow accumulation trends and the effectiveness of snow removal operations. This often leads to delays in initial response and inefficient resource allocation. Furthermore, conventional snow removal methods make it difficult to identify early on conditions where road surface recovery is unlikely. [Solution] The snow removal decision support system of the present invention includes an analysis unit that acquires multiple pieces of information including weather conditions and snow removal status, analyzes the temporal progression by causally relating the occurrence of snowfall, the formation or maintenance of snow accumulation, and the implementation status of snow removal work, and determines whether a condition in which road surface conditions are difficult to restore has continued for a predetermined period of time; and a road snow removal unit that generates an analysis result indicating the need for snow removal measures different from normal snow removal measures based on the determination result, and reflects this in the implementation plan and response instructions.

The application provides a kind of low-temperature high-toughness pipe fitting steel plate, comprising the following mass percentage of chemical elements: C: 0.05~0.07%, Si: 0.15~0.19%, Mn: 1.5~1.7%, Cu: 0.1~0.35%, Ni: 0.2~0.5%, Cr: 0.1~0.35%, Mo: 0.1~0.3%, V: 0.001~0.02%, Nb: 0.02~0.05%, Ti: 0.008~0.015%, Ca: 0.002~0.004%, Al: 0.02~0.04%. The application also provides a preparation method of the steel plate, which comprises heating, rough rolling, finish rolling and cooling of the slab. The steel plate has excellent impact toughness and can be used to manufacture pipe fittings for long-distance oil and gas pipeline projects in high-cold areas, so as to improve the safety of pipe fittings in long-distance oil and gas pipeline projects.

The present application relates to the technical field of self-service vending equipment, and discloses a control method, system and device for self-service vending of ice cream, which comprises the following steps: controlling an execution mechanism to complete filling and obtaining an actual net weight through weighing; comparing the actual net weight with a preset product control interval, and executing discarded reprocessing or fuse refunding when an abnormality is determined; when the product is determined to be qualified, controlling the execution mechanism to move to a delivery position or stay in a cold area inside a cabinet according to the in-situ state of a user; opening a window door plate after the finished product reaches the delivery position, and closing the window door plate under anti-pinch safety monitoring after confirming that the finished product is taken away. The present application introduces a weighing analysis and closed-loop product control process after production, dynamically adjusts the delivery and temporary storage strategy in combination with the in-situ state of the user, simultaneously enhances the anti-pinch safety of the delivery window by using multi-sensor fusion, solves the problems of poor production consistency, rigid delivery process and insufficient safe interaction, and improves the automation level of the device and the user experience.

The application discloses a kind of steel frame steel structure low-temperature welding process, it is related to the welding technical field under the low-temperature environment of metal structural member in building construction, comprising the following steps: welding preparation: welding material selection and the surface cleaning treatment of welding material place;Welding operation: in low-temperature environment, the welding area of welding material is set preheating temperature, and welding parameter is optimized;Slow cooling treatment after welding: after welding material is placed slow cooling environment, and slow cooling temperature and slow cooling duration are controlled;The application is optimized by welding material and process parameter, reduces the stress concentration caused by temperature difference in welding process, saves energy consumption under the premise of guaranteeing engineering quality, reduces production cost;Through multilevel slow cooling measures, effectively control the organizational transformation behavior in weld cooling process, promote the development of construction industry in cold region, enhance the safety and stability of building under extreme weather conditions.

The utility model relates to the technical field of building slope roof structure, especially to a slope roof structure of wind resistance and anti -slip in severe cold area, including concrete layer, heat preservation and insulation layer, wind pressure type board, anti -slip pedal and protective wall, the concrete layer is cast in the top of slope roof, the side wall fixed heat preservation and insulation layer of concrete layer away from roof, heat preservation and insulation layer away from the concrete layer covers fixed wind pressure type board, the lower end fixed connection of wind pressure type board outside lower extreme anti -slip pedal, the anti -slip pedal sets up on the eave upside, the protective wall fixedly arranged in the downside of eave, improved the structure stability and heat preservation performance of slope roof.

The application discloses a kind of normal temperature and low temperature anti-wet skid rubber shoe material and preparation method thereof, wherein shoe material is by following material according to weight fraction Composition:100 parts rubber, 40-60 parts reinforcing filler, 10-30 parts functional filler, 4-8 parts modified resin, 2-6 parts coupling agent, 3-6 parts zinc oxide, 1-2 parts stearic acid, 3-8 parts active agent, 1-3 anti-aging agent, 1-5 parts plasticizer, 1-3 parts sulfur, 1-5 parts accelerator;The functional filler is any one or several combinations of calcium sulfate whisker, basic magnesium sulfate whisker, potassium titanate whisker, borate whisker and phosphate whisker.The product of the application has excellent anti-wet skid effect while maintaining good physical properties, and can be applied to safety shoes, outdoor shoes, sports shoes and other high-demand application scenarios, especially in cold regions.

The application discloses a cold and hot impact test box capable of shortening temperature recovery time, which comprises a box body, a partition plate arranged in the box body, a moving channel arranged on the partition plate, a basket assembly, a power assembly, a transmission assembly and a pressure balance assembly. The partition plate divides the box body into a cold area and a hot area. The basket assembly moves in the cold area and the hot area through the moving channel. The power assembly is used for providing power for the movement of the basket assembly. The transmission assembly is connected with the power assembly and the basket assembly and is used for transmitting the power of the power assembly to move the basket assembly in the cold area and the hot area. The pressure balance assembly is communicated with the cold area and the hot area and is used for balancing the pressure of the cold area and the hot area. The cold and hot impact test box capable of shortening temperature recovery time balances the air pressure of the cold area and the hot area through the pressure balance assembly, does not need to exchange air with the outside world, reduces the loss of energy and does not affect the performance of refrigeration.

The application discloses a climate self-adapting spectrum regulation structure of a non-transparent outer wall skin in a severe cold area, and belongs to the technical field of building materials. The climate self-adapting spectrum regulation structure comprises a base wall body, an asymmetric radiation base arranged outside the base wall body, a spectrum self-adapting functional layer arranged outside the asymmetric radiation base, and a weather-resistant protective layer arranged outside the spectrum self-adapting functional layer. The spectrum self-adapting functional layer comprises a composite shell microcapsule and a film-forming adhesive. The climate self-adapting spectrum regulation structure changes the radiation visual field of the skin to the sky, the ground and surrounding structures through an asymmetric structure, improves the effective radiation heat exchange capacity of the skin to the sky in summer, and weakens the interference of low-position heat sources on the reverse radiation of the skin. The climate self-adapting spectrum regulation structure can make the outer wall skin exhibit higher solar absorption and lower radiation heat dissipation under low-temperature conditions, and exhibit higher solar reflection and higher atmospheric window emission under high-temperature conditions by using the composite shell microcapsule.

The present application belongs to the technical field of basin hydrology monitoring, and particularly relates to a method for measuring winter runoff of a small basin in a cold region. A flow measuring weir is arranged at a water outlet of a catchment area of a small basin in a cold region, a flow guide pipe is arranged at the bottom of the flow measuring weir, and a low-temperature radar flowmeter is arranged at the top center position inside the flow guide pipe to measure the runoff. The present application provides a method for measuring winter runoff of a small basin in a cold region. The method constructs a flow measuring weir, sets a flow guide pipe to guide the flow, introduces the runoff of the small basin from the ground surface to the underground, ensures the normal flow of the runoff water during the ice formation period in winter, thereby avoiding the adverse effects of water freezing on the measurement of the runoff, and accurately measures the flow rate and flow of the winter runoff by using the low-temperature flowmeter.

This invention discloses an infusion set with heating function, relating to the field of infusion set technology. It includes an energy module, a sensing and execution module, an information processing and communication module, and a central control unit. The sensing and execution module comprises an infusion execution unit, a physiological monitoring unit, an environmental and posture sensing unit, and a heating and temperature control unit. The central control unit is electrically connected to the energy module, the infusion execution unit, the physiological monitoring unit, the environmental and posture sensing unit, the heating and temperature control unit, and the information processing and communication module. By incorporating an infusion execution module with these components, this invention achieves active heating in low-temperature environments and precise infusion control during movement, offering significant advantages in cold regions, winter outdoor emergency care, or ambulance transport scenarios.

The utility model discloses a kind of foam tape for photovoltaic module installation, including substrate layer and the pressure-sensitive adhesive layer and release layer respectively sequentially arranged in the two sides of substrate layer, substrate layer is composed of polyurethane foam layer and the polytetrafluoroethylene foam layer being arranged in its two sides, the two surfaces of polytetrafluoroethylene foam layer are provided with silane coupling agent coating, polyurethane foam layer and polytetrafluoroethylene foam layer are connected by silane coupling agent coating and adhesive layer, pressure-sensitive adhesive layer and polytetrafluoroethylene foam layer are connected by silane coupling agent coating. The foam tape of the application has strong adhesive force, good cushioning effect, strong ultraviolet resistance and chemical corrosion resistance, and is suitable for special environments with high corrosion resistance and temperature resistance requirements, such as photovoltaic systems on roofs of chemical enterprises, installation of photovoltaic projects in high-altitude or extremely cold areas.

A construction method for a modular coupled water-heat hydrological model of distributed cold regions is provided, and includes: S1, dividing a basin into multiple grids, and preparing documents required for a flow concentration process; S2, preparing driving data and grid feature description data of each of the grids; S3, calculating an energy balance process of soil and vegetation surface by using the energy balance module; S4, calculating an evapotranspiration process by using the evapotranspiration module; S5, calculating an ice-snow melting process by adopting a degree-day factor method by using the ice-snow melting module; S6, calculating soil moisture infiltration and an internal water-heat transmission process by using the soil water-heat transmission and infiltration module; S7, calculating a runoff amount by using the runoff generation calculation and concentration module; and S8, evaluating simulation performance of the model by model evaluation indicators.

The utility model discloses a kind of cold-resistant polyvinyl chloride sheath power cable, it is related to power cable technical field, comprising: the conductor core formed by multiple silver-plated copper alloy conductors, self-repairing insulating layer, nanometer ceramic fiber braided layer, double shielding layer, water-blocking expansion tape wrapping layer, anti-freezing buffer layer and modified cold-resistant PVC sheath are covered in the conductor core outside one side.The utility model cold-resistant polyvinyl chloride sheath power cable is by using modified cold-resistant PVC sheath, low-temperature impact modifier and the like components are added in its formula, so that cable can still maintain good flexibility and impact resistance in cold environment, effectively resist the damage brought by low temperature, ensure the stability of power transmission, widen the application range of power cable in cold region.

A method (20) for outputting measurement data from at least one thermal imaging camera (11) is disclosed, wherein measurement data are acquired by the at least one thermal imaging camera (11), wherein the acquired measurement data are processed such that cold areas (16) of the measurement data are at least darkened, wherein the processed measurement data are generated by at least one image sensor (12) and output onto at least one projection surface (13), wherein the processed measurement data are divided along a vertical direction H and output onto lateral areas (18) of the projection surface (13). Furthermore, an output system (10) and a vehicle (100) are disclosed.

This utility model relates to the field of road engineering technology and discloses a frost heave and differential settlement control structure suitable for culvert sections in cold regions. The structure, from top to bottom, includes a roadbed, a fill matrix, a stepped aggregate layer, a stepped high-strength foamed concrete layer, and a culvert. A main drainage pipe is inclinedly arranged in the aggregate layer, and lateral drainage pipes are provided on both sides of the roadbed slopes to drain moisture from the roadbed. The high-strength foamed concrete layer is laid above and on both sides of the culvert, providing good thermal insulation to address freezing issues exacerbated by wind tunnel effects, and buffering the frost heave force of the surrounding soil to prevent direct frost heave force from causing compression damage to the culvert structure. This structure forms a multi-level stiffness transition from flexible to semi-rigid along the culvert transition section of the roadbed, reducing differential settlement and misalignment risks at the connection between the culvert and the roadbed, improving the overall stability of the roadbed and driving safety. The overall structure is reliable, easy to construct, and suitable for widespread application in cold regions.

The application relates to the technical field of solar cells, and mainly provides a photovoltaic module. The photovoltaic module comprises, in sequence, a front plate glass, a first polyurethane adhesive film, a solar cell, a second polyurethane adhesive film and a back plate glass; wherein the polyurethane of the first polyurethane adhesive film and the second polyurethane adhesive film respectively and independently comprises one or both of aliphatic polyether polyurethane and aliphatic polyester polyurethane. The photovoltaic module in the technical scheme has good chemical resistance, cold resistance, low-temperature resistance and impact resistance, and can ensure that the photovoltaic module has long-term stability and good impact resistance in cold regions.

The present application relates to the technical field of heating tube production, and particularly relates to a heating tube fatigue testing device, which comprises a machine table, a transfer mechanism installed on the machine table, a test water tank installed above the machine table, a mounting plate arranged on a sliding seat of the transfer mechanism, a clamping mechanism arranged below the mounting plate, a driving mechanism arranged on the upper side of the mounting plate and used for driving the clamping mechanism to move, and an induction control assembly arranged below the mounting plate and arranged opposite to the clamping mechanism. The present application realizes automatic transfer of the heating tube between the test water tank and a cold area through cooperation of the transfer mechanism and the clamping mechanism, and manual intervention is not needed, so that the labor intensity is significantly reduced. The induction control assembly is used for monitoring the temperature in real time, and heating is stopped when the threshold value is reached, so that the uniformity of the fatigue testing conditions and the accuracy of the testing data are ensured.

The present application relates to a kind of polymer modified mortar for severe cold area and its production process, belong to light building material technical field.The mortar is based on aluminum powder foaming system, introduce a kind of polyether bridging polymer blend modification, the tertiary amine and thioether structure of this polymer are anchored on the surface of aluminum powder, its hydrophilic polyether chain improves aluminum powder wettability, makes foaming slow and uniform;Foaming process will polymer directional push to bubble wall anchor, polyether chain is embedded in high brittle aluminum sulfate cement hydration gel to realize molecular level toughening, form dense-flexible composite pore wall, successfully solve the technical problems of the intrinsic brittleness of aluminum sulfate cement in foaming mortar in severe cold area, unstable pore structure, poor freeze-thaw durability, provide a kind of high-performance insulation mortar with light weight, high strength, high toughness, durability, with significant technical progress and broad engineering application prospect.

The utility model relates to electronic display screen heat preservation technical field, concretely relates to a kind of electronic display screen heat preservation device suitable for severe cold area outer wall.The heat preservation device includes heat preservation subassembly;Installation groove for installing the heat preservation subassembly is opened on the outer wall outer wall surface;The heat preservation subassembly includes heat preservation cavity, temperature controller and heater;The side of heat preservation cavity away from the outer wall is transparent wall surface;Electronic display screen, the temperature controller and the heater are arranged in the heat preservation cavity;The electronic display screen, the temperature controller and the heater are connected with power supply, and the temperature controller and the heater are connected.The utility model can solve the problem that electronic display screen is easily frozen in the prior art in severe cold area without heat preservation measure or heat preservation measure is not in place, or dull and slow reaction and display abnormality appear.