99results about How to "Slow heat transfer" patented technology

A container for rapidly cooling and holding foods at safe temperatures for extended periods of time which includes an upwardly opening inner container in which foods may be placed and another container surrounding the inner container. An enclosed chamber is formed between the bottoms and side walls of the inner and outer containers and is provided with a slow-to-freeze, slow-to-thaw gelatinous material which may be frozen by placing the container in a low temperature freezer. The container is further characterized in that the bottom and walls of the inner container provide insulating properties which control the rate of heat transfer between the gelatinous material, when frozen, and foods placed in the container and further characterized in that the bottom and walls of the outer container provide insulating properties which substantially retard heat transfer between the gelatinous material, when frozen, and the ambient air which surrounds the container.

A battery module for receiving battery cells provides cooling through a cooling fluid. Chilled fluid travels first to the hottest part of the battery module and then continues to gradually less hot areas. As the chilled cooling fluid absorbs heat and travels to cooler parts of the battery module, the heat transfer between the fluid and the battery cells decreases because the temperature differential between the cells and cooling fluid decreases, providing a more even temperature distribution across the battery module. The cooling fluid may be contained in a conduit associated with one or more cooling plates. A plurality of slots provide a precise mechanical support for each battery cell, increasing the heat conduction from the cell to the battery module, protecting the battery module from vibration and decreasing contamination in case of thermal runaway or other damage to the cells.

Varying oil injection by an oil injector onto a piston of an engine to accommodate different operating conditions.

In one aspect, the invention provides a body comprising particles containing an insulating aerogel material intermingled with particles containing a phase change material, and a binder forming a matrix retaining the intermingled particles. In another aspect, the invention provides a method of forming an insulating body comprised by applying first and second streams onto a substrate; the first stream comprising a binder and the second stream comprising particles containing aerogel material; and simultaneously applying a phase change material onto the substrate.

A fire retardant barrier panel (16) comprising a first protective layer (18) of a first material and a fire resistant phenolic-based resin layer (19) bonded to the protective layer. The first material may be selected from the group consisting of gypsum, ceramic fiber, phenolic foam, basalt, fiberglass, carbon fiber, mineral wool and intumescent materials. The resin may be a phenol or phenolic resin. The fire retardant barrier panel may further comprise a second protective layer (20) bonded to the resin layer (19) such that the resin layer is between the first and second protective layers. The second protective layer (20) may be selected from the group consisting of gypsum, ceramic fiber, phenolic foam, basalt, fiberglass, carbon fiber, mineral wool and intumescent materials.

The invention provides a diaphragm of a lithium battery and a preparation method thereof. The diaphragm of the lithium battery comprises a base diaphragm, a ceramic coating and a hot melted polymer coating. The ceramic coating and the hot melted polymer coating are located on the same side of the base diaphragm, and the ceramic coating comprises a ceramic particle material and a first adhesive; the hot melted polymer coating comprises hot melted polymer material particles and a second adhesive. The problem of thermal closing and thermal contraction of the diaphragm is solved.

The present invention relates generally to a new process for hermetically sealing of a high thermally conductive substrate, such as, an aluminum nitride substrate, using a low thermally conductive interposer and structure thereof. More particularly, the invention encompasses a hermetic cap which is secured to an aluminum nitride substrate using the novel thermal interposer. The novel thermal interposer basically comprises of layers of relatively high thermal conductive metallic materials sandwiching a core layer of low thermal conductive metallic material.

The invention relates to a tank furnace for producing basalt continuous filament and pertains to the technical field of novel inorganic non-metallic material processing equipment, the main characteristics are that the furnace body consists of a melting tank and material channels, the melting tank and the material channels are connected by non-submerged dog-holes, the melting tank is divided into a melting area and a homogenization area, a burner is arranged at the top of the furnace vertically, the burner guns of melting area and the feeding pipes are arranged in intervals, and the strong melting area of even feeding and even heating is formed. The material channels are arranged in three directions in the homogenization area of the melting tank, burner guns are arranged in the material channel in sections, the temperature of the fused mass in the material channels is guaranteed, more than 12 wiredrawing shaping areas are evenly arranged in each material channel so as to supply basalt melt mass for the wiredrawing bushing well, emptying devices are arranged at the tail part of the melting tank and the tail parts of all material channels, during the operation, the operation of discharging the meltwater can be carried out when impurities are stored in the meltwater for a long time or the varieties of raw materials are changed. The invention is in favor of improving the quality and industrialized production of the basalt continuous filament.

A thermal control unit with a heat pipe that conducts heat away from a device under test during burn-in. The heat pipe has a heater that allows control of the rate at which heat is transferred from the DUT to the heat pipe. A sensor and controller are provided to control the heat in response to the measured temperature of the DUT. The sensor and controller control the heater to maintain the surface temperature of the DUT within a specified range.

The invention discloses a method and equipment for preparing lithium iron phosphate from a lithium iron phosphate precursor. The method comprises the three process steps of pretreatment of the lithium iron phosphate precursor material, pre-sintering and sintering; and in a non-oxidizing environment, the precursor material is heated by a certain number of microwave heaters, and the three process steps are finished by controlling treatment temperature and treatment time to finally prepare the lithium iron phosphate product. The equipment comprises a material inlet, a material feeding ventilation chamber, a pretreatment unit furnace, a pre-sintering unit furnace, a sintering unit furnace, a material discharging ventilation chamber, a cooling material discharging mechanism, a material outlet,a vacuumizing device, a protective gas input device and an equipment control circuit. In the method, the pretreatment and pre-sintering process steps are added to optimize a lithium iron phosphate microwave sintering process and solve keys problems on product quality control. The equipment provided by the invention realizes continuous microwave sintering by a plurality of unit furnaces so as to improve the sintering efficiency and realize large-scale industrial production.

A fire-resistant micro-metal brake pad is mainly composed of the following components according to weight percentages: 2-4% of nitrile rubber, 3-6% of tyre powder, 3-5% of expansion graphite, 4-8% of super-fine iron oxide powder, 9-13% of boron containing phenolic resin, 3-6% of chromite, 3-5% of magnetite, 5-8% of diatomite, 6-9% of E glass short fibre, 7-11% of grammite fibre, 6-9% of chopped steel fibre, 8-12% of viscose fibre, 0.5-1% of aluminium silicate hollow ball, 2-3% of heavy magnesia, 0.2-0.5% of zinc stearate, 0.5-1% of copper sulphide, 3-5% of calcined petroleum coke and 10-15% of barite. The material of the invention is environmentally-friendly and rust-less, the heat transmission is slow, the fire and thermal degradation resisting performance is good, and the service life is long. After the invention is used, the brake of the small automobile is sensitive, the brake is stable, no brake scream is generated, and the comfortable performance is good, thereby not damaging the couple plate.

The invention discloses a colour steel sandwich panel with high combustibility grades, which comprises an upper metal panel (1), a lower metal panel (2) and a light core material (3); and the light core material (3) is arranged between the upper metal panel (1) and the lower metal panel (2) and is integrally connected with a cementing compound layer (4) between the upper metal panel (1) and the lower metal panel (2) through the light core material (3); the colour steel sandwich panel with high combustibility grades is characterized in that: at least one fireproof parting strip (5) is arranged in the light core material (3) vertical to the upper metal panel (1) and the lower metal panel (2); and the thickness of the fireproof parting strip (5) is equal to that of the light core material (3). The invention also discloses a preparation method of the colour steel sandwich panel. The fireproof parting strip arranged in the colour steel sandwich panel can prevent flames from spreading, delay the heat transfer speed, weaken the drop melting degree of the light core material and the cementing compound, and greatly reduce the fire risk of the colour steel sandwich panel when in use. The preparation method is simple and convenient; moreover, the preparation method is also easy for control and industrial production.

The invention discloses a layered vacuum insulation board core material and a preparation method thereof. The thickness of the vacuum insulation board core material is between 5 and 50mm, the coefficient of heat conductivity is between 0.018 and 0.03 W/mK, and the vacuum insulation board core material is formed by overlying a plurality of layers of glass fiber mats and can be prepared into vacuum insulation boards with high-efficient thermal insulation. According to the layered vacuum insulation board core material, continuous glass fiber with 6 to 13 mu m of diameter and 5 to 20mm of length is used and cannot be sucked into the deep parts of human lungs after being authenticated by world health organization, so that the layered vacuum insulation board core material is safe and harmless, meets the requirements of materials, can be used at ease for a long time and solves the problems of sanitation and safety of vacuum insulation board products.

A solar heat collector with a film hole structure comprises a heat preservation box with the upper end open, a phase-change material layer is arranged in the heat preservation box, a coiled pipe is arranged in the phase-change material layer, a conical metal foam layer is arranged at the top of the phase-change material layer, the outer wall of the conical metal foam layer is wrapped by a transparent outer layer which can transmit light, and metal foam is added into the phase-change material layer. The content of air in a heat collecting area is greatly increased due to the metal foam structure, an air layer is divided into parts with small volumes, and therefore heat loss caused by convection is prevented. Sunlight can illuminate the conical metal foam layer through the transparent outer layer, the conical metal foam layer has the function of a heat absorber and converts light energy into heat energy, and the transparent outer layer has the function of a heat insulating layer and prevents heat in the heat absorber from being dissipated to the outside. The solar heat collector can effectively absorb solar radiation and fast store the energy and can be widely used for drying, food processing, household heat supplying , cooking and the like.

The invention discloses a process method for reducing vacuum brazing defects of a 6061 aluminum alloy and a clamp. The clamp comprises an upper cover plate (2) and a lower cover plate (1) connected through a vertical rod (7); an upper stainless steel plate (4), a spring (5) and a gasket (3) are successively arranged below the upper cover plate (2); and a lower stainless steel plate (6) is arrangedabove the lower cover plate (1). According to the process method and clamp disclosed by the invention, curves of temperature-raising, insulating and cooling processes are adjusted during brazing. Thecold plates can be domesticated by adopting the processing method and the clamp, the vacuum brazing defects of the 6061 aluminum alloy are reduced greatly, the product quality is improved, and meanwhile the international image of an enterprise is enhanced.

The invention discloses a preparation method for an aluminum pot, which comprises the following steps in turn: preparing materials; uniformly stretching; non-uniformly stretching; and forging and pressing. The preparation method for the aluminum pot has the advantages that the prepared pot meets the use habit of people, the cooking effect is good, the preparation technology is simple and the cost is lower.

A self-contained insulated vessel having a storage area defined by an inner wall and an outer wall which are spaced apart and dosed off to define a cavity therebetween. An insulating substance is contained within at least part of the cavity in order to maintain a stored item at a predetermined temperature for an extended period of time or cool a stored item with a temperature higher than the predetermined temperature of the insulating substance. The insulating vessel can include a user engagement interface for shielding a user from at least part of an exterior surface of said vessel.

The invention discloses a method for recycling waste terylene fibers. The method comprises the following steps of primarily crushing the waste terylene fibers to obtain staple fiber pompons; purifying and degrading on the staple fiber pompons by dense microwave fields with high-frequency rotation; performing vacuum pumping on water and oil; finally, grinding and crushing to obtain finely-ground terephthalate (BHET) polymer powder; meanwhile, the invention provides a device system and microwave purifying equipment for realizing the method. The method, the device system and the microwave purifying equipment disclosed by the invention have the advantages that the waste terylene fibers are recycled by adopting microwave purification degradation to obtain the BHET polymer powder which can be used as the polyester raw materials; an original recovery mode of obtaining bubble powder is thoroughly changed, and closed circulating recovery of the waste terylene fibers is realized; the method is green and environment-friendly, high in economy and resource-saving; the device system and the equipment provide hardware guarantee for realizing the method.

The invention relates to a -162 DEG C LNG butterfly valve. In order to embody the characteristics that the LNG butterfly valve is communicated in two directions and has a safety function, a butterfly plate is axially provided with two pressure adjustment valves which are respectively communicated in a single direction, the pressure adjustment valves can be set according to specific requirements of LNG pipeline flow paths together with control pressure of each pressure adjustment valve, the two portions, on the two sides of a pipeline, of the LNG butterfly valve can be automatically communicated in two directions, pressure balance of the two sides of the valve is effectively controlled, backflow control is easy, and both opening and closing and safety control can be achieved. Meanwhile, due to the adoption of the technology that a telescopic elastic valve rod provided with a prestressed spring is adopted, the all-welded ball valve technology of the labyrinth seal technology and the like, valve design pressure and design pressure of an LNG conveying system can be effectively reduced, the size of the valve is smaller, safety is higher, and machining and manufacturing cost is lower.

The invention relates to a method for the triple-effect separation of methylbenzene and polyethylene and a device used for the method. The method comprises the following step: separating a polyethylene-containing methylbenzene waste liquid sequentially through primary reduced-pressure distillation, primary normal-pressure distillation and primary positive-pressure distillation, wherein methylbenzene steam serves as a heat source which is used repeatedly. The device comprises a waste liquid preheater, a negative-pressure evaporator, a methylbenzene condenser, a decanter, a tail gas condenser, a normal-pressure evaporator, a positive-pressure evaporator, a positive-pressure methylbenzene intermediate tank, a methylbenzene residue storage tank and a residue evaporation tank. The device provided by the invention is an energy-saving and emission-reducing device. According to the method provided by the invention, based on the distillation range difference of one liquid under different pressures, the material is concentrated by using secondary steam, thereby greatly saving the production cost.