601 results about "Cold winter" patented technology

The present invention discloses a multilayer dielectric optical structure wherein one of the optical materials in the multilayer structure shows an optically isotropic state above and a birefringent state below a characteristic temperature Tc near the room temperature. The optical structure reflects a predetermined wavelength range of electromagnetic radiation above the Tc but allow the same to transmit through below the Tc. The predetermined wavelength can be the near infrared radiation from 700 nm to 2500 nm, and the optical structure rejects solar heat in warm summer days but admits the same to interior on a colder winter day.

The invention discloses a sewer flushing vehicle for grooved type solar thermal power generating thermal collectors. The sewer flushing vehicle comprises a vehicle body, a cleaning system and a blow-drying system, wherein the vehicle body comprises a driving cab and a chassis, the cleaning system arranged on the chassis is used for cleaning glass and thermal collecting tubes of the grooved type solar thermal power generating thermal collectors, and the blow-drying system arranged on the chassis is used for blow-drying of the cleaned grooved type solar thermal power generating thermal collectors by aid of hot air at a certain temperature. By aids of the cleaning system and the blow-drying system, the thermal collectors can be dried under high temperature after finishing cleaning, impurities such as dust and the like are not easy to be attached. Particularly in cold winter when washed water can be frozen, by utilizing a fast blow-drying function of the sewer flushing vehicle, the cleaned thermal collectors can be dried fast through a high-flow high-pressure vortex fan with certain temperature raise, and then the sewer flushing vehicle can be operated normally instantly. Besides, accumulated snow remaining on thermal collector condenser lenses and the thermal collecting tubes of the thermal collectors in winter can be blown down forcedly by the sewer flushing vehicle.

The invention discloses portland cement-sulphate aluminum cement-gypsum-polymer composite waterproof mortar and a preparation method thereof. The method comprises the following steps: weighing the following raw materials in parts by weight: 35-50 parts of portland cement, 12-21 parts of sulphate aluminum cement, 5-12 parts of gypsum, 7-18 parts of redispersible polymer powder, 13.5-19 parts of filler and 1-3 parts of additive, and then stirring until the powder is fully and evenly mixed, so as to prepare the powder of waterproof mortar; in construction, pouring the powder into an agitator, adding water according to a mass ratio of the powder to water being 1:(0.4-0.6), and agitating until uniform mucilage free of aggregation is generated, so as to obtain the waterproof mortar. The mortar disclosed by the invention has excellent waterproof plugging effect. In addition, the mortar also has the advantages of good anti-permeability, high bonding strength, low shrinkage rate and the like, is applicable to special engineering in cold winter or relatively cold weather, and meets the requirements of engineering on properties such as early strength performance and water resistance.

The invention relates to an automobile-used energy management system. The automobile-used energy management system comprises a refrigerant circulating loop, an engine heat dissipation and passenger cabin heating loop and a battery loop, wherein a second evaporator and a second heating heat exchanger are connected to a pipeline of the battery loop; the engine heat dissipation and passenger cabin heating loop is also connected with the second heating heat exchanger which is a double-flow heat exchanger and comprises a first flow channel and a second flow channel; and the battery loop and the engine heat dissipation and passenger cabin heating loop are respectively connected with one of the flow channels of the second heating heat exchanger, and the two flow channels can realize heat exchange. In this manner, heat of an engine can be transferred to a battery when an automobile is just started in cold winter, so that the battery can be used as power after achieving optimal temperature, and the service life of the battery is prolonged.

The invention provides a temperature adjustment method for an inner-outer-wall-structured heat preservation device and the heat preservation device implementing the temperature adjustment method, relating to a method for transferring heat between inner and outer walls in a sealing cavity of the heat preservation device and further relating to a multifunctional heat preservation device with heating and cooling functions. The heat preservation device comprises an outer wall (1), an inner wall (2), a controllable heat transfer medium (3), a heat transfer boss (4) and a limiting structure (7). Under a heat preservation state, the heat transfer medium (3) is only in contact with the outer wall (1) or the inner wall (2), and a thermal insulation state is formed between the inner and outer walls in the heat preservation device. Under a heat dissipation state, the heat transfer medium (3) is fit with the heat transfer boss (4) between the inner and outer walls of the heat preservation device, and heat is transferred through the inner wall (2), the heat transfer boss (4), the heat transfer medium (3) and the outer wall (1). Under the action of the limiting structure, the heat preservation device can be in a reliable heat preservation or heat dissipation state no matter when the heat preservation device is placed upwards, downwards, obliquely and transversely or when the people move. The heat preservation device provided by the invention has a reliable heat preservation function and is capable of heating and cooling under a sealing state, so that the pollution of liquid to air is avoided, and meanwhile, sprinkling and scalding are prevented; and the heat preservation device can be used as a warming device in cold winter.

The invention relates to a waste water treatment system, in particular to a circulating closed ammonia nitrogen stripping system. The system mainly solves the technical problems of low efficiency, high energy consumption, heavy secondary pollution, instable operation, high temperature requirement of a stripping process, low stripping efficiency in cold winter, need of heating waste water, high treatment cost and the like in the prior art. The system provided by the invention comprises a waste water circulating pool, wherein the waste water circulating pool is connected with a stripping liquidinlet pump; the stripping liquid inlet pump is connected with a stripping tower; the stripping tower is communicated with the waste water circulating pool; a waste water spraying device is arranged in the stripping tower and on the top; a filler layer is fixed below the waste water spraying device; the top of the stripping tower is connected with an absorption tower through a waste gas pipe; a filler layer is fixed in the absorption tower; the top of the absorption tower is connected with a stripping fan through a pipe; the stripping fan is arranged at the bottom of the stripping tower and iscommunicated with the stripping tower; and the waste water circulating pool is also connected with a pH reversely regulating pool through a clean water pipe.

The invention provides a power battery heat-preservation control method and system for an electric vehicle, and the vehicle. The power battery heat-preservation control method comprises the steps thata vehicle-mounted communication module receives a charging setup instruction, wherein the charging setup instruction comprises the charging time and the vehicle-using time; according to the chargingtime, when charging is completed, a vehicle controller obtains the power battery heat-preservation preheating time according to the power battery average temperature, the environment temperature and the vehicle-using time; the vehicle-mounted communication module conducts timing, when the power battery heat-preservation preheating time is reached, a heat-preservation request is sent to the vehiclecontroller; the vehicle controller sends a heat-preservation instruction to a battery controller according to the heat-preservation request; and the battery controller controls a heater to heat a power battery according to the heat-preservation instruction. According to the power battery heat-preservation control method, the problems that under the cold winter low-temperature situation, vehicle power performance is limited, and the mileage is decreased can be solved, thus the service life of the power battery is prolonged, and the endurance mileage of the power battery is increased.

The invention provides a low-temperature lithium iron phosphate lithium-ion power battery. The low-temperature lithium iron phosphate lithium-ion power battery comprises a positive plate, a negative plate, a membrane, electrolyte, a shell, a cover plate and a post terminal, wherein positive materials in the positive plate comprise a positive active material, a binding agent and a conductive agent, the positive active material is lithium iron phosphate which is subjected to nanocrystallization and is coated with a discontinuous graphene structure, the median diameter of the nanocrystallization lithium iron phosphate is 5-10nm, the graphene is 3-8 layers of multilayer graphene, and the coating area accounts for 40%-70% of the total surface area of the lithium iron phosphate material. The low-temperature lithium iron phosphate lithium-ion power battery has the advantages that the problem that the lithium iron phosphate lithium-ion power battery has poor low-temperature property is solved, the low-temperature lithium iron phosphate lithium-ion power battery has relatively excellent low-temperature property under the condition that other performance indexes are not lowered, the application range of the lithium iron phosphate lithium-ion power battery is greatly expanded, and the lithium iron phosphate lithium-ion power battery facilitates the popularization of electric cars in low-temperature areas and the normal use of the electric cars in cold winter.

A wiper blade is provided capable of wiping a windshield of a vehicle in a suitable operating condition even in a cold winter season. The wiper blade includes a wiper strip configured to contact and wipe a glass surface of the windshield, a frame coupled to the wiper strip, an adapter disposed at a center of the frame and configured to be joined to the wiper arm, and a heating unit attached to the frame to heat the wiper blade. The heating unit includes a power source and a heating element heated by power supplied from the power source.

The invention belongs to the technical field of recovery of waste heat in a circulating water system, relating to a processing system of heating by using waste heat of hot water for slag flushing in ablast furnace. A water inlet pipe of a cooling tower and a slag-flushing water input pipeline are respectively connected to a water outlet header pipe of a slag-flushing water hot water lift pump ofthe inventive slag-flushing water circulating system, and the slag-flushing water input pipeline enters a common heating processing system, which is characterized by that the heating processing systemcomprises a pipeline mixer, a coarse filtration equipment, a fine filtration equipment and a one-stage heat exchanger; that a water return pipe of a heating system is connected to the one-stage heatexchanger and a heating water supply pipe is connected with a heating water supply pump unit via a two-stage heat exchanger; and that the heated hot water is conveyed into the heating system by the heating water supply pipe. The inventive processing system achieves the purposes of energy conservation and consumption reduction, which is applied to heating by using the waste heat of hot water for slag flushing in the blast furnace in some regions with cold winter, and which is also applicable to a circulating system for other media that are heated necessarily due to the temperature reduction after used.

The components used in this invention has never been utilized in this special type of arrangement ever before. This “Climate Control for Parked Automobiles” does not exist and cannot be found anywhere.Once available to the public it will be very helpful and will help stranded passengers and / or pets inside the automobile during warm summer days, and to drivers returning to their warm vehicles during cold winter days.

This invention provides a pet enclosure designed to provide comfort for a pet in the winter season. The pet enclosure provides for shelter by allowing the pet to get out of the weather and then provides a warm bed to lie upon. This warm bed is comprised of a rectangular rigid plastic container, similar to a tall, wide, narrow gas can, which is recessed into the floor of the pet enclosure. An internal, totally submersible aquarium type heater is utilized to keep the water solution tank at a user-defined temperature. The tank is recessed into the floor and is effectively insulated on five of its six surfaces. The remaining top surface is covered by a fiber-filled pet bed. This bedding, when not compressed by the pet, acts as an insulator, trapping the heat in the container. When the pet lies on the bedding, the insulating value of the bedding is drastically reduced and the heat travels through the bedding and the pet is warmed. This provides for a comfortable warm area for the pet to enjoy on cold winter days.

The invention relates to an experimental method for quick start of a fuel cell pile in subzero temperature. A system for quick start of the fuel cell pile in subzero temperature comprises the fuel cell pile, a fuel cell test platform, a low temperature test chamber, a circulating water pump and a cooling fluid circulation water tank, wherein the fuel cell pile is respectively connected with the fuel cell test platform, the circulating water pump and the cooling fluid circulation water tank; a load of the fuel cell test platform is an electrical load; and the fuel cell pile, the circulating water pump and the cooling fluid circulation water tank are arranged in the low-temperature test chamber. The experimental method comprises the following steps: starting load discharge under the condition without carrying out cooling circulation; and when the internal temperature of the fuel cell pile or the temperature of air gas emission reaches a specified temperature value, starting the circulating water pump, and thereby finishing starting. The experimental method has the advantages that: the method is simple, the start speed is fast, auxiliary energy has no need to be consumed, the start is safe, and the experimental method is provided for quick start and normal operation of the fuel cell pipe in cold winter environment, so that the development of industrialization of fuel cells for vehicles is promoted.

The invention relates to a thermochromism coating with variable emissivity and a preparation method thereof. The coating comprises a transition layer and the thermochromism coating with variable emissivity; the transition layer is a NiCrAl or NiCrAlY coating with thickness of 50 to 100 mu m; the thermochromism coating with variable emissivity is a La0.7Ca0.3-xSrxMnO3 coating with thickness of 70 to 300 mu m wherein the x value in the La0.7Ca0.3-xSrxMnO3 is 0.1<=x<=0.3. In comparison with a prior art, the thermochromism coating with variable emissivity and the preparation method thereof have outstanding advantages that (1) the coating prepared in the invention overcomes a problem that fragility of a ceramics slice results in low rate of finished products; (2) a plasticizer is added to avoid influences of magnetism of a manganese oxide on the preparation of the coating; (3) the preparation method is simple, the thickness of the coating can be controlled easily, specifications of a test piece are not restrained, large-scale production is conducted easily, and the method is used widely and has great value in actual application; and (4) the prepared coating is applicable to thermal control and thermal management of temperature of systems and equipment and is particularly applicable to a spacecraft thermal control system and a surface or a wall of a building in an area with cold winter and hot summer.

The invention provides a precast box beam concrete construction method in winter in a cold region. The precast box beam concrete construction method comprises the following steps: preparing to pour, manufacturing a template and pouring the template, carrying out quality testing, preparing to maintain, carrying out maintenance, and carrying out natural curing. According to the precast box beam concrete construction method, steam is adopted to heat and stir concrete aggregate; after pouring forming, a steam maintenance greenhouse is adopted to carry out constant-temperature and constant-humidity maintenance on the precast box beam structure, so that the normal implementation of the precast box beam concrete construction in the cold winter is ensured, the concrete strength is also ensured, and the standard maintenance condition is basically met; and the related temperature control adopts the manner that temperature sensors are pre-embedded in and out of a component, the operation is simple, the temperature control is accurate and sensitive, and the construction technology is more scientific.

The invention relates to an outdoor cleaning robot which comprises a sweeping vehicle. A camera is arranged on the upper side of the sweeping vehicle, an automatic driving device and a controller arearranged in the sweeping vehicle, a path planning module and an image recognition module are arranged in the controller, the path planning module is connected with the automatic driving device, the controller receives image information acquired by the camera, and articles in images are recognized by the image recognition module. A garbage sweeping and collecting mechanism is arranged on the frontside of the sweeping vehicle, the sweeping vehicle is connected with a garbage carriage and provided with a sweeping mechanism which drives the garbage sweeping and collecting mechanism to move up anddown, and garbage bin mechanical arms are arranged on two sides of the sweeping vehicle respectively. The outdoor cleaning robot is available for all-weather operation, the problem of high workload of cleaners at present is solved, the problem of cleaning in cold winter and hot summer and even rainy and snowy days is solved especially, and manpower is freed.

The invention relates to a method for preparing a bio-organic fertilizer by the biological fermentation of banana stalk and leaves, comprising the following steps of: cutting down banana pseudostems 1.5m away from the bottom of the banana pseudostems; cutting the banana pseudostems which are cut down into halves, followed by natural drying for 5-7 days; cutting off and crushing the banana pseudostems into short segments of 2-3 cm by the use of a pulverizer or a hay cutter; adding 5 wt% of chicken manure and 0.1-0.2 wt% of a bio-fermentation inocula with mixing and stirring to obtain a solid mixed raw material; adding water into the solid mixed raw material with stirring until the content of the water is 60-70 wt%, so as to obtain a liquid mixed raw material; piling up for 25-30 days during which turning is carried out for 1-2 times and insulation is taken into consideration in cold winter. Due to bio-fermentation, the production period is shorter than naturally piling time. Therefore, nutrients in the stalk and leaves can be reserved as much as possible, and some substances which are hard to absorb and utilize can be converted into available nutrients by the effect of microorganisms.

The invention relates to a multifunctional compound air inlet control device of a counterflow type natural ventilation cooling tower. The multifunctional compound air inlet control device constituted by a certain number of air guide plates, air baffle plates and sound insulation plates is arranged outside the air inlet circumference of the cooling tower, wherein the multifunctional compound air inlet control device can improve air inlet uniformity of the cooling tower, improve the performances of the cooling tower, reduce the temperature of circulating water out of the tower and improve economy in operation of an unit through the air guide plates; by arranging the air baffle plates, the cooling tower can be prevented from being iced in cold winter; and by arranging the sound insulation plates, noise pollution at the periphery of the cooling tower can be further reduced.

The invention discloses a power battery module temperature control system for a new energy coach, which comprises a battery module, wherein the battery module is connected with a battery management controller through a temperature collecting wire; a battery inlet air guide hood is fixed on one side of the battery module in a sleeving manner; a battery outlet air guide hood is fixed on the other side of the battery module in a sleeving manner; a heating panel and a vortex pipe are fixed at the inlet of the battery inlet air guide hood; a vortex pipe is sequentially connected with a blast pump and a motor through a corresponding electromagnetic valve. According to the power battery module temperature control system for the new energy coach, based on the integral heat management and control of the whole coach, the compressed gas output from the blast pump and motor cooling water heat in the moving coach are mixed as an energy source; the cold gas and hot gas are provided for the battery through the vortex pipe and the heating panel; the temperature control of battery module is realized; the requirement that the battery can work in an optimal temperature range in a cold winter and in a hot summer is satisfied.

The invention relates to a modified emulsified asphalt waterproof coating, and in particular relates to a low temperature resisting polymer modified emulsified asphalt waterproof coating which is waterproof, moisture-proof and corrosion-proof and is used in the fields of house roofs, undergrounds, indoors, roads and bridges and the like. The coating comprises the following ingredients in parts by weight: 20-40 parts of asphalt A, 1-10 parts of asphalt B, 10-30 parts of polymer emulsion, 0.5-3.0 parts of emulsifying agent, 20-40 parts of water, 10-30 parts of antifreeze agent, 0.1-0.6 part of drier and 0-1 part of thickening agent. The coating is large in film forming strength, high in extension, good in rebound resilience and good in low temperature performance; the formed film can be bent at the temperature of minus 40 DEG C repeatedly without crack and can be stored, transported and adopted for construction application in cold winter; and the coating is fast in film formation, short in drying time in winter construction and free from health damage on construction working personnel.

The invention discloses a non-azeotropic refrigerant charge determining method. The non-azeotropic refrigerant charge determining method comprises the following three steps of (1) estimating the refrigerant charge; (2) according to the environment characteristic of regions with hot summer and cold winter, selecting at least four working situations for refrigerant charging and performance testing from high temperature to low temperature based on the estimated value in the step (1), injecting refrigerants of different masses to a test unit, and testing the refrigerating capacity, the energy efficiency ratio, the input power and the like through an enthalpy potential method; and (3) carrying out contrastive analysis on experiment results of the selected working situations and finally obtaining the range of the optimal refrigerant charge during whole-year operation. Through estimation, testing and contrastive analysis of the refrigerant charge, the non-azeotropic refrigerant charge can be determined accurately, performance of the unit is improved, and compared with a traditional method of briefly estimating the refrigerant charge, precision is higher, and the performance of the unit is better.

The invention discloses an epoxy resin curing agent and a preparation method thereof. Amine compounds and phenolic compounds react for 2 to 14 hours under the temperature of 30 DEG C to 120 DEG C, and then the epoxy resin curing agent is obtained. The curing agent of the invention has no generation of the three wastes during the preparation, and has excellent physical and mechanical strength, light color, low viscidity, good fluidity, stable property for long term storage and no precipitation and crystallization whether in hot summer or cold winter, and can solidify epoxy resin under the lower temperature (3 DEG C to 7 DEG C). Compared with the unmodified aliphatic amine and alicyclic amine, the epoxy resin curing agent has good miscibility with the epoxy resin, can totally satisfy the requirements of the coatings, the electrons, the decorations, the adhesives and the composites.

The invention discloses a calculating method for determining cooling and heating load of a building in a hot-summer and cold-winter zone by utilizing a pivot element decoupling method. Factors influencing the cooling and heating load of the building are divided into two main types: the self attribute parameter and the operation attribute parameter of the building. The calculation is conducted by the following steps: according to the indoor comprehensive heat dissipation power, calculating the benchmark of the cooling and heating load; according to the work and rest time in the building, calculating the radiation coefficient and the temperature difference coefficient; according to the orientation, the window-wall ratio, the external wall heat resistance and the window heat resistance of the building, calculating the correction factors of the orientation, the window-wall ratio, the external wall heat resistance and the window heat resistance in sequence; according to the coupling influence of the self attribute parameter and the operation attribute parameter, calculating the coupling influence factor; finally calculating the average cold and hot power of unit area of the building in summer (winter) and the cooling (heating) capacity in various time periods of a typical day. The calculating method can meet the precision requirements of engineering application, quickly and economically calculate the cooling and heating load of the typical building in the hot-summer and cold-winter zone, guide the distributed energy system design, and provide reference for system operation and optimization.

The invention belongs to the field of tea tree seedling raising and specifically discloses a wild tea camellias cutting seedling raising method. The wild tea camellias cutting seedling raising method mainly comprises the following steps: within cutting time in May to June or October to November, scissoring new twigs which are 1.8-2.2mm in stem diameter and grown in the current year from selected excellent stock trees as cutting seedlings, wherein the branches become red from green, and the cutting seedlings are semi-lignified strong branch tips which are free of quarantine diseases and provided with axillary buds, preparing a seedling bed, cutting, shielding the sunshine, preventing freezing, performing field management after cutting, transplanting and the like. According to the characteristics that wild tea camellias is concentrated in a high altitude area with great diurnal temperature difference and cold winters, and has unique growth characteristics, improvements to the material selection, seedling bed preparation, seedling field management and the like, which are different from those of a common tea tree cutting technology, are made, so that the survival rate of the wild tea camellias is greatly increased.

The present invention discloses a multilayer dielectric optical structure wherein one of the optical materials in the multilayer structure shows an optically isotropic state above and a birefringent state below a characteristic temperature Tc near the room temperature. The optical structure reflects a predetermined wavelength range of electromagnetic radiation above the Tc but allow the same to transmit through below the Tc. The predetermined wavelength can be the near infrared radiation from 700 nm to 2500 nm, and the optical structure rejects solar heat in warm summer days but admits the same to interior on a colder winter day.

This invention provides a pet enclosure designed to provide comfort for a pet in the winter season. The pet enclosure provides for shelter by allowing the pet to get out of the weather and then provides a warm bed to lie upon. This warm bed is comprised of a rectangular rigid plastic container, similar to a tall, wide, narrow gas can, which is recessed into the floor of the pet enclosure. An internal, totally submersible aquarium type heater is utilized to keep the water solution tank at a user-defined temperature. The tank is recessed into the floor and is effectively insulated on five of its six surfaces. The remaining top surface is covered by a fiber-filled pet bed. This bedding, when not compressed by the pet, acts as an insulator, trapping the heat in the container. When the pet lies on the bedding, the insulating value of the bedding is drastically reduced and the heat travels through the bedding and the pet is warmed. This provides for a comfortable warm area for the pet to enjoy on cold winter days.

The invention relates to a downward spraying type spray boosting aeration cooling tower and shooting flow air-cooler. A tower body is provided with an out revolving type spray boosting wind pumping device inside which sprays frog flow by being connected pressure hot water, a nozzle downward sprays and laminas downward pump wind; cooling medium wind enters a wind channel for one time and two times from the tower top and a wind outlet is arranged on the middle lower part of the tower wall and is provided with a wind bucket. The lower part of the spraying device is provided with layers of drenching screen stencils, the water distribution and wind leading enable the drenching even and the cold winter passes amongst the water frog flow for a plurality of times, thereby greatly elevating the heat passing efficiency. Because the wind has the same direction with the water, the disturbance of the water frog to the laminas is reduced and the wind force of the ejection flow is increased, and the praying flow injection wind is downward and also be utilized, namely the generated three air flows of lamina mechanical wind, spray injection wind and the lamina injection wind proceed the heat exchanging with the spray flow, the wind rate is increased, the gas and water rate reaches above 1.0 which is 29 to 90 percent higher than the prior upward spraying cooling towers, and the reducing temperature can be greatly elevated. The noise of the tower water flow is reduced; the tower top has no drift ice, and the working hydraulic pressure is 0.08 to 0.12MPa. Because the wind temperature is near to the water temperature, the invention can be simultaneously used as the injection flow air-cooler, and the refrigerating air-condition in winter, summer and autumn.