224 results about "Cold climate" patented technology

A heater system for an electrical storage device, such as a high voltage traction battery, is connectable to an external AC power source maintain a proper temperature of the battery as long as the system remains connected to the external power source. The battery temperature can be maintained at a level that ensures that the vehicle will start even in extremely cold climates. The heater system includes a heater disposed within the battery itself. Other system components, such as an AC / DC converter and a control module, may be connected to the battery heater system outside of the battery, allowing the battery heater system to act as a modular component that can be easily included in or excluded from a vehicle as an option, either alone or in a package with an engine block heater. The battery heater system is designed so that it can be connected along with the engine block heater to the AC power source using a single common connector.

A plug of a power cord of a block heater which is mounted to a cylinder block of an engine, is connected to a household power receptacle to energize the block heater during an engine stoppage in cold climate. Thus, an engine coolant is kept warm to prevent freeze. Existence / nonexistence of the energization to the block heater during the engine stoppage is determined based on a behavior of coolant temperature or a behavior of engine rotation speed immediately after an engine start. If it is determined that the energization to the block heater exists, abnormality diagnosis of a cooling system is prohibited or a condition for the abnormality diagnosis is corrected and estimation coolant temperature is corrected.

The invention discloses a fiber-reinforced epoxy asphalt material and a preparation method thereof, belonging to the technical field of chemical new materials for roads and bridges. The fiber-reinforced epoxy asphalt material consists of a part A and a part B, wherein the part A consists of the following components in parts by mass: 40-100 parts of asphalt, 0.1-20 parts of fibers, 5-50 parts of methyl tetrahydrophthalic anhydride, 10-100 parts of dicarboxylic acid, 10-100 parts of dicarboxylic acid polyanhydride and 0.1-1.0 part of an epoxy resin curing accelerant; the part B is an epoxy resin; and the mass ratio of the part A to the part B is (1-5):1. Special equipment is not required during preparation, an operation process is simple, and environment friendliness is realized; and after the material is cured, a three-dimensional interpenetrating polymer network structure (I PN structure) with 'low overall crosslinking density and high local crosslinking density' is formed, so that the material has excellent high-temperature use strength, high deformation capability and extremely high low temperature toughness, and can be applied as a paved layer on large-span steel bridge surfaces and road surfaces in highly-cold climate regions.

Disclosed is a process for preparation of compositions having utility as well fluid base oils. The process involves metathesis of alpha-olefins followed by isomerization of the metathesis products. The base oils resulting from the process of this invention are environmentally friendly in that they are only mildly toxic to marine life and have very low pour point temperatures. These properties make the base oils ideal candidates for use as components of well fluids for cold climates and offshore applications.

A secondary battery which can achieve battery performance satisfactorily in a low temperature environment in cold climates or the like is provided. Further, a secondary battery having high capacity even in a low temperature environment in cold climates or the like is provided. A secondary battery includes a positive electrode, a negative electrode, and an electrolyte solution which contains a nonaqueous solvent and an electrolyte. The negative electrode includes a negative electrode active material layer. The negative electrode active material layer contains graphene, a binder, and a negative electrode active material containing a particulate alloy-based material. The nonaqueous solvent contains propylene carbonate and the electrolyte contains lithium perchlorate.

A tent having one or more features including a condensation barrier, removable insulated floor, reinforced portions, retractable vestibule, vent elements and vent cowling, insulated walls, and split outer vent is disclosed. The condensation barrier restricts frozen condensation to only a small portion of the tent. The removable insulated floor is efficiently installed in the tent to provide added comfort and safety for the occupants. The reinforced portions facilitate assembly of the tent poles from the inside of the tent and provide an efficient means of installing the removable insulated floor. The retractable vestibule may be extended to provide added shelter and retracted in extreme weather to protect the tent from damage. The vent elements facilitate the circulation of air through the tent and reduce stress on the tent seams during higher winds. The insulated walls provide added warmth in extremely cold climates without compromising the weather resistance of the tent. The split outer door vent provides ventilation without adding significant additional weight or complexity to the tent or allowing precipitation to enter the tent.

A solar defrost panel has a photovoltaic panel with an integrated electrical defrost system. The electrical defrost system has an electrical heating element that overlays the photovoltaic panel. The electrical defrost system can remove snow, frost and ice from the solar defrost panel and prevent snow, frost and ice from accumulating on the solar defrost panel. The electrical defrost system can have a controller to automatically or manually control operation of the electrical heating element. The controller can be located inside of a building for convenience of the user. The solar defrost panel provides clearing of snow, frost and ice from the solar defrost panel which can allow the photovoltaic panel to operate effectively during winter and in cold climate regions.

Disclosed is a culture system for the production of algae biomass to obtain lipid, protein and carbohydrate. By integrating heterotrophic processes with a phototrophic process in parallel, this system provides year around production in colder climates. By integrating heterotrophic processes with a phototrophic process in series, this system creates a two-stage, separated mixed-trophic algal process that uses organic carbon and nutrients for the production of seed in the heterotrophic process, followed by release of cultured seed in large-scale phototrophic culture for cell biomass accumulation. Organic carbon source including waste materials can be used to feed the heterotrophic process. The production capacity ratio between the heterotrophic and the phototrophic processes can be adjusted according to season and according to the availability of related resources. The systems are used for producing and harvesting an algal biofuel feedstock as well as other potential high-value products. The sequence and approach enhances utilization of carbon and nutrient waste-streams, provides an effective method for controlling contamination, adds flexibility in regard to production and type of available products, and supplies greater economic viability due to maximized use of available growth surface areas.

A system of building concrete homes and apartment buildings. The system creates a structure that is well insulated and that is very practical and economical to build. The system uses standard components such as wall ties, concrete forms, rigid foam insulation, and concrete, all of which are readily available in the market today. The system creates a building that is insulated and thermally broken at its structural connections such that use in temperate and colder climates is possible. Presently concrete construction finds only limited use for the construction of single family and multi-family housing. The system is economical to construct when compared to wood frame housing.

Disclosed are compositions having utility as well fluid base oils. The base oils are comprised of a mixture of internal predominantly linear tetradecene (C14) isomers and internal predominantly linear hexadecene (C16) isomers. The base oils of this invention have pour point temperatures lower than -25° C. and are environmentally acceptable to marine life. The base oils disclosed are ideal candidates for use in cold climates and for offshore drilling.

A blade system for device for recycling mixed plastic is disclosed. Furthermore, a device and a method for recycling unidentified, unclean, and unsorted mixed plastic into reusable plastic mixture is disclose. The present solution allows the recycling of mixed plastic waste outdoors, both in warm and cold climate conditions. In the course recycling mixed plastic waste the mixed plastic waste is taken to a melting temperature, at which the mixed plastic waste is mixed in a molten state, and the organic and bacterial material is destroyed during the thermal processing. After the melting, mixing and thermal processing of the mixed plastic waste, the compaction process of the molten mixed plastic waste is performed. Volume compacting is performed, and the mass of mixed plastic waste in a molten state is rapidly cooled down, crushed, after-cooled and homogenized.

The invention discloses an artificial wetlands system suitable for low-temperature operation and an operating method thereof and belongs to the field of artificial wetland treatment. The system disclosed by the invention comprises a sewage treatment system which is suitable for low-temperature regions and consists of an adjusting pool, an anoxic horizontal sub-surface artificial wetland, an anaerobic horizontal sub-surface artificial wetland, an aerobiotic vertical sub-surface artificial wetland, a novel thermal insulation material, a phosphorus absorption pond, a water pump, a water collecting pond comprising a self-sucking siphon and a water distributing pipeline. Treated sewage enters into the adjusting pool through a water inlet, the sewage treated enters into the anoxic horizontal sub-surface artificial wetland and then sequentially enters into the anaerobic horizontal sub-surface artificial wetland and the aerobiotic vertical sub-surface artificial wetland, and the effluent reaches the standard and is discharged. The system disclosed by the invention can be used for not only effectively recovering part of resources to lower the operating cost, but also improving the treatment efficiency by virtue of an efficient nitrogen and phosphorus removal process and by way of additionally arranging the thermal insulation material and the phosphorus absorption pond. The system further can efficiently and stably operate in winter under a cold climate condition and a novel sewage treatment technology is provided for the low-temperature regions in winter.

The invention belongs to the technical field of high polymer materials, and particularly discloses a reinforced and toughened ultra-low temperature resistant nylon composite material. The reinforced and toughened ultra-low temperature resistant nylon composite material is prepared from the components: 55-75 parts of nylon resin, 15-30 parts of glass fiber, 5-12 parts of a toughening agent and 0.5-2 parts of a lubricating agent, the toughening agent is a mixture of amino-terminated polydimethylsiloxane, epoxy-terminated polydimethylsiloxane and an organosilicone elastomer toughening agent; andthe glass fiber is the glass fiber modified by a silane coupling agent containing an amino group or an epoxy group. The invention further discloses a preparation method of the reinforced and toughenedultra-low temperature resistant nylon composite material, and application to preparation of high-speed rail fittings in areas with extremely-cold climate and the fields of electronic engineering, communication and aerospace in the ultra-low temperature environments, the reinforced and toughened ultra-low temperature resistant nylon composite material is high in strength and good in toughness, theultra-low temperature resistant performance is especially excellent, the preparation method is simple, the production efficiency is high, and the reinforced and toughened ultra-low temperature resistant nylon composite material has the universality, and is suitable for large-scale production application.

A system and method for preventing damage and undesirable situations / conditions from occurring in point of use (POU) or point of entry (POE) water systems that are not in regular use. This invention may be implemented in residential, non-residential situations or constructions where it can add value, such as commercial properties that undergo seasonal and / or other periods of disuse. In cold climate areas, faucets should be turned on and run to prevent water in the pipes from freezing, which can cause pipes to burst or leak and result in significant property damage. In all climates rust, corrosion, particles, contamination, and biofilm, can develop and / or settle in the pipes if faucets are not turned on periodically, resulting in sub-standard water quality when the system is eventually used. Also, if water is left to sit in residential pipes, other effects / conditions can take place over time that generally effect color, taste and order of the water if it does not periodically move through the system.

The invention relates to a winter welding construction method of a long-distance transport pipeline, which is characterized by comprising the following steps of: pairing pipes, setting up a heat-preservation shed around the orifices of the pipes to be welded before welding to preserve heat and dehumidify, and carrying out all-position welding on the pipes by using a cellulose manual underhand welding method and a semiautomatic underhand welding method in a welding process, wherein the manual welding is adopted for root welding and the semiautomatic welding is adopted for other welding; heating a welded junction at 100-150 DEG C by using an electric heater after finishing welding and keeping a constant temperature for half an hour, then immediately wrapping the completed welded junction and covering with felt, binding by using a rubber belt and preserving heat for above 24 hours. The winter welding construction method of the long-distance transport pipeline has the advantages of overcoming the defect that the welding construction of the long-distance transport pipeline cannot be carried out in winter due to cold climate in northern areas and ensuring the normal welding construction of the long-distance transport pipeline in winter, has high welding quality and is suitable for welding high-intensity pipelines mainly made from X65 and the like. The winter welding construction method of the long-distance transport pipeline is characterized by low carbon equivalent, low sensitivity index of welding cold crack and high low-temperature toughness and is mainly used for the long-distance transport pipelines of petroleum, natural gas, slurry and the like.

Disclosed is a polyarylene sulfide resin composition containing 100 parts by mass of a polyarylene sulfide resin (A), 0.1-8 parts by mass of a metal fine particulate (B) containing at least one metal type selected from a group comprised of copper, nickel and zinc, and 0.1-5 parts by mass of a thermoplastic elastomer (C); further disclosed is a fluid pipe material obtained by forming said resin composition. This fluid pipe material has high hardness at low temperatures, suppresses damage and rupturing of the pipe due to freezing, and resists creep deformation at high temperatures, and thus is useful as a water supply pipe, a water heater pipe, and the like in cold climates.

A heat pipe which can prevent frost damage of the pipe body due to freezing of the typical working fluid in cold climates by encapsulating an aqueous solution containing about 0.5 to about 10 wt % glycols as a working fluid, and which has a working performance almost comparable to that of the heat pipe in which water is used as the working fluid.

The invention provides a preparation method of high-hardness wear-resistant super-hydrophobic concrete, and belongs to the technical field of building material preparation. The preparation method comprises: stirring and mixing cement, fine sand, water and a water-soluble low surface energy material to form a cement slurry; pouring the cement slurry into a mold, and flatly adhering a metal mesh to the lower surface of a pressure plate; making the lower surface of the pressure plate cover the mold; and carrying out natural air drying or cure drying to obtain the super-hydrophobic concrete. According to the present invention, the obtained super-hydrophobic concrete has advantages of high hardness, high wear resistance, freezing rain resistance, icing resistance, freeze thawing resistance, self-cleaning property, corrosion resistance and the like, and can significantly improve the durability of highway concrete, freezing rain zone pavement concrete, and coastal zone bridge concrete in extremely cold climates.

Process for producing a hydrogen-containing product gas suited for operating in regions where the ambient conditions are below freezing for extended periods of time during the winter and warm or hot during the summer months. Hot makeup water is provided to the process to avoid freezing. A portion of the hot makeup water stream is heated in a steam generator to make steam where the steam is used to heat incoming hydrocarbon feed for the process. Another portion of the hot makeup water stream may be heated by combustion product gases where the heated water stream is used to heat incoming combustion oxidant.

A vibration sensor mounted on a tree on the earth outputs a signal voltage corresponding to a sound from the earth. The signal voltage is continuously measured by a sound observing device and read into a data processing device. The data processing device has a forecasting unit which performs a long-term weather forecasting process based on the value of the signal voltage, i.e., a sound pressure level representing the magnitude of the sound pressure of the sound from the earth. Specifically, the forecasting unit forecasts long-term weather conditions such as warm and cold climates related to high and low temperatures three and six months after the measurement of the sound from the earth, based on changes in the sound pressure level of the measured sound.

The invention discloses a rural domestic sewage treatment system suitable for the northern part of China and a technology thereof. The system consists of a sewage anaerobic hydrolysis tank, an aerobic biological filter, a horizontal subsurface flow artificial wetland, a water pump and pipes, wherein the aerobic biological filter comprises an atomization nozzle and a light filter material; the horizontal subsurface flow artificial wetland comprises water plants, a dephosphorization filler and a liquid level controller. The sewage to be treated flows automatically into the anaerobic hydrolysis tank from a water inlet; and the treated sewage enters the aerobic biological filter, then enters the horizontal subsurface flow artificial wetland to be treated; and the effluent is discharged according to the standard. An efficient denitrification and dephosphorization technology is adopted in the system, an all-underground treatment facility is used and measures such as wetland liquid level controllable regulation are adopted, thus the operating cost can be reduced, the treatment efficiency can be increased, the efficient and stable operation can be realized in winter under a cold climate and a new rural domestic sewage treatment technology is provided for the northern part of China.

The invention relates to a cold-resistant acclimation method for kandelia candel seedling pot plants planted at a high latitude. The method successively comprises the following steps that firstly, kandelia candel hypocotyls developing well are collected, soaked by using seawater and transplanted to a planting field as soon as possible; secondly, flower pots are placed on the planting field and then filled with planting soil; then, the kandelia candel hypocotyls are inserted and planted in the flower pots; finally, before winter, a greenhouse is built on the planting field, it is guaranteed that tidewater can normally rise and fall to the interior of the greenhouse, and the kandelia candel hypocotyls which are inserted and planted in the flower pots are subjected to high-temperature and low-temperature alternative acclimation cultivation. According to the cold-resistant acclimation method, in the natural mudflat environment, a potting technology is used for seedling raising and acclimation at the same time, the survival rate is increased, and afforestation through kandelia candel is achieved in harsh mudflats; in the seedling raising process in winter, the environmental temperatureof the greenhouse is continuously adjusted, so that seedlings gradually adapt to the cold climate, the adaptive capacity to the lower temperature is improved, and the mangrove forest grows in a high-latitude area with the north latitude of 28-31 degrees.

An improved portable battery system having a plurality of accumulator batteries designed with circuit features to prolong life through cell balancing is disclosed. Further, the portable battery system is designed to be a lighter-weight alternative by use of individual field operators, for example, in colder climates configured to a heated garment. Additionally, the power supply includes a microcontroller that provides control and monitoring of accumulator properties. A power supply commutator is provided to aid efficient discharge of accumulators.

The present invention provides a heat exchanger unit (5) that can appropriately inhibit freezing of a heat exchange element (11), even in cold-climate regions. The heat exchanger unit (5) performs heat exchange and ventilation between an indoor space (SI) and an outdoor space (SO), and is therefore provided with a heat exchange element (11), a supply air passage that is routed via the heat exchange element (11), an exhaust air passage that is routed via the heat exchange element (11), a temperature sensor (51), and a control unit. The temperature sensor (51) detects the outside air temperature. The control unit executes a first freeze inhibit control mode and a second freeze inhibit control mode. The first freeze inhibit control mode inhibits freezing of the heat exchange element (11) if the outside air temperature falls below a first level. The second freeze inhibit control mode, which inhibits freezing more strongly than the first freeze inhibit control mode, inhibits freezing of the heat exchange element (11) if the outside air temperature falls below a second level (which is lower than the first level).